MedWorm.com provides a medical RSS filtering service. Over 6000 RSS medical sources are combined and output via different filters. This feed contains the latest items from the 'BioMedical Engineering OnLine' source. Tue, 07 Feb 2012 07:42:46 +0100 http://www.medworm.com/index.php?rid=5657882&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F11%2F1%2F5 In this study an experimental CPAP ventilator was constructed using an application-specific CPAP blower/motor assembly and a microprocessor. To minimize pressure variations caused by spontaneous breathing as well as the uncomfortable feeling of exhaling against positive pressure, we developed a composite control approach including the feed forward compensator and feedback proportional-integral-derivative (PID) compensator to regulate the pressure delivered to OSAS patients. The Ziegler and Nichols method was used to tune PID controller parameters. And then we used a gas flow analyzer (VT PLUS HF) to test pressure curves, flow curves and pressure-volume loops for the proposed CPAP ventilator. The results showed that it met technical criteria for sleep apnea breathing therapy equipment. Fina... BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5657882 Wed, 01 Feb 2012 05:00:00 +0100 5657882 http://www.medworm.com/index.php?rid=5618242&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F11%2F1%2F4 Conclusions: Transform coefficients computed from ensemble averages can be used to succinctly quantify synchronized patterns present in AF data. The technique can is useful to automatically detect recurrent patterns in CFAE that are embedded in interference without user bias. This quantitation can be implemented in real-time to map the AF substrate prior to and during catheter ablation. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5618242 Thu, 19 Jan 2012 05:00:00 +0100 5618242 http://www.medworm.com/index.php?rid=5579146&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F11%2F1%2F2 Conclusions: The study showed that it might not be necessary to perform the time-consuming careful editing of all detected heartbeats before HRV is analysed in Holter recordings. In most subjects, it is sufficient to perform the regular editing needed for valid arrhythmia analyses, and then remove undetected ectopic beats and artefacts by age-based filtration of the series of RR intervals, particularly in subjects older than 30 years. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5579146 Wed, 11 Jan 2012 05:00:00 +0100 5579146 http://www.medworm.com/index.php?rid=5579145&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F11%2F1%2F3 Background: Wireless capsule endoscopy has been introduced as an innovative, non-invasive diagnostic technique for evaluation of the gastrointestinal tract, reaching places where conventional endoscopy is unable to. However, the output of this technique is an 8 hours video, whose analysis by the expert physician is very time consuming. Thus, a computer assisted diagnosis tool to help the physicians to evaluate CE exams faster and more accurately is an important technical challenge and an excellent economical opportunity.MethodThe set of features proposed in this paper to code textural information is based on statistical modeling of second order textural measures extracted from co-occurrence matrices. To cope with both joint and marginal non-Gaussianity of second order textural measures, hi... BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5579145 Wed, 11 Jan 2012 05:00:00 +0100 5579145 http://www.medworm.com/index.php?rid=5557435&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F11%2F1%2F1 Looking back at one point of life appears as a nice exercise to round out and summarize. However, the objective should not be simply to tell a story; it must transmit a message to the young. To start with, two concepts are useful: " Respect for others begins when you learn to laugh at yourself " and, taken from an old saying, "I did not want to be poor ... but money wouldn't make me rich". After elementary and high schools, during times of turmoil, I describe my engineering school years at the University of Buenos Aires and a working experience in an international telecommunications company. Significant events taught me a concept, rooted in another motto: "Isn't this house nice? It is my house, and I love it very much". In 1960, I began my activities in the USA. A couple of bad decisions r... BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5557435 Sun, 01 Jan 2012 05:00:00 +0100 5557435 http://www.medworm.com/index.php?rid=5535303&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F111 Conclusion: Continuous monitoring of the patient-specific Elung and Edrs and minimally invasive PEEP titration provide a unique, patient-specific and physiologically relevant metric to optimize PEEP selection with minimal disruption of MV therapy. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5535303 Fri, 23 Dec 2011 05:00:00 +0100 5535303 http://www.medworm.com/index.php?rid=5521812&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F109 Conclusions: Cardiac murmurs can be separated from underlying deterministic heart sounds using DSP. DSP has the potential to become a reliable and economical new diagnostic approach to screening for structural heart disease. However, DSP must be further evaluated in a large series of patients with well-characterized pathology to determine its clinical potential. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5521812 Tue, 20 Dec 2011 05:00:00 +0100 5521812 http://www.medworm.com/index.php?rid=5521811&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F110 Conclusions: The paper focuses on the challenge of generating summaries of bronchoscopy video recordings. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5521811 Tue, 20 Dec 2011 05:00:00 +0100 5521811 http://www.medworm.com/index.php?rid=5513587&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F108 The aim of this research is to propose a small intestine model for electrically propelled capsule endoscopy. The electrical stimulus can cause contraction of the small intestine and propel the capsule along the lumen. The proposed model considered the drag and friction from the small intestine using a thin walled model and Stokes' drag equation. Further, contraction force from the small intestine was modeled by using regression analysis. From the proposed model, the acceleration and velocity of various exterior shapes of capsule were calculated, and two exterior shapes of capsules were proposed based on the internal volume of the capsules. The proposed capsules were fabricated and animal experiments were conducted. One of the proposed capsules showed an average (SD) velocity in forward dir... BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5513587 Fri, 16 Dec 2011 05:00:00 +0100 5513587 http://www.medworm.com/index.php?rid=5502570&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F107 Conclusions: The developed algorithm is suitable for processing long AECG data, efficient, and correctly classified the majority of records of the LTST DB according to type of transient ischemic heart disease. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5502570 Wed, 14 Dec 2011 05:00:00 +0100 5502570 http://www.medworm.com/index.php?rid=5474512&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F105 Conclusion: CaudateCut generates segmentation results that are comparable to gold-standard segmentations and which are reliable in the analysis of differentiating neuroanatomical abnormalities between healthy controls and pediatric ADHD. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5474512 Mon, 05 Dec 2011 05:00:00 +0100 5474512 http://www.medworm.com/index.php?rid=5466737&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F104 Conclusions: The modelled catheter position is insufficient to provide a high chemical agent concentration in the desired tumour feeding artery, which is vital for therapy success. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5466737 Fri, 02 Dec 2011 05:00:00 +0100 5466737 http://www.medworm.com/index.php?rid=5466738&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F103 Conclusions: The mattress with a custom-made arrangement is a more appropriate choice for heavier men with pronounced body contour. After data fitting, it was observed that the variations of spinal alignment obtained from both methods have the same trend. Observing the amount of required stiffness obtained for the sleep surface, can have a significant effect on keeping the spine healthy. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5466738 Wed, 30 Nov 2011 05:00:00 +0100 5466738 http://www.medworm.com/index.php?rid=5438827&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F102 Conclusions: H-FIRE is a feasible technique for non-thermal tissue ablation that eliminates muscle contractions seen in IRE treatments performed with unipolar electric pulses. Therefore, it has the potential to be performed clinically without the administration of paralytic agents. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5438827 Mon, 21 Nov 2011 05:00:00 +0100 5438827 http://www.medworm.com/index.php?rid=5419665&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F101 This article is a review of the book: 'Biomedical Image Processing', by Thomas M. Deserno, which is published by Springer-Verlag. Salient information that will be useful to decide whether the book is relevant to topics of interest to the reader, and whether it might be suitable as a course textbook, are presented in the review. This includes information about the book details, a summary, the suitability of the text in course and research work, the framework of the book, its specific content, and conclusions. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5419665 Fri, 18 Nov 2011 05:00:00 +0100 5419665 http://www.medworm.com/index.php?rid=5419666&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F100 Conclusion: Given its computational efficiency and high sensitivity, reputation-based classification of dual-axis accelerometry ought to be considered in future developments of a point-of-care swallow assessment where clinical informatics are desired. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5419666 Tue, 15 Nov 2011 05:00:00 +0100 5419666 http://www.medworm.com/index.php?rid=5398265&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F98 Conclusions: The correlation of the BELA signal with the visceralbut not with the subcutaneous fat area as measured by MRI is promising.The lack of correlation with the subcutaneous fat suggests that subcutaneousfat has a minor influence to the BELA signal. Further research will show ifit is possible to develop a reliable low-cost method for the assessmentof visceral fat either using BELA only or combining it, for example, withbioelectrical impedance measurement. The combination of these measurementsmay help assessing visceral fat in a large scale of body composition. Beforelarge-scale clinical testing and ROC analysis, the initial BELAinstrumentation requires improvements. The accuracy of the present equipmentis not sufficient for such new technology. (Source: BioMedical Engineering OnLin... BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5398265 Thu, 10 Nov 2011 05:00:00 +0100 5398265 http://www.medworm.com/index.php?rid=5398264&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F99 Conclusion: This KPCA-based method requires only a digital camera and a decorated corridor setup. The ease of use and installation of the current method provides clinicians and researchers a low cost solution to monitor the progression of and the treatment to PD. In summary, the proposed method provides an alternative to perform gait analysis for patients with PD. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5398264 Thu, 10 Nov 2011 05:00:00 +0100 5398264 http://www.medworm.com/index.php?rid=5398266&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F97 Conclusion: We have provided preliminary evidence showing that the SL preprocessing may provide benefits in comparison with accepted approaches. The work will require further evaluation with varying datasets to confirm these findings. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5398266 Tue, 08 Nov 2011 05:00:00 +0100 5398266 http://www.medworm.com/index.php?rid=5398267&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F96 Conclusions: The results of the current study suggest that nonlinear HRV analysis using short-term ECG recording could be effective in automatically detecting real-life stress condition, such as a university examination. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5398267 Mon, 07 Nov 2011 05:00:00 +0100 5398267 http://www.medworm.com/index.php?rid=5378221&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F95 Conclusions: We investigated a number of probe-sample configurations and found that contact measurement could be the primary choice for single-fiber probes, but was very inefficient for multi-fiber probes. There was an optimal probe-sample distance for multi-fiber probes. By carefully choosing the probe-sample distance, the collection efficiency could be enhanced by 5-10 times. Our experiments demonstrated that the experimental results of the probe-sample distance dependence of collection efficiency in multi-fiber probes were in general agreement with our theory. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5378221 Wed, 02 Nov 2011 04:00:00 +0100 5378221 http://www.medworm.com/index.php?rid=5344906&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F94 Conclusions: We demonstrated a method for analyzing effects of coupled magnetic field interference on implantable neurostimulator system and its electrodes which could be used by device manufacturers during the design and testing phases of the development process. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5344906 Fri, 21 Oct 2011 04:00:00 +0100 5344906 http://www.medworm.com/index.php?rid=5332770&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F93 No description available (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5332770 Thu, 20 Oct 2011 04:00:00 +0100 5332770 http://www.medworm.com/index.php?rid=5322347&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F92 Conclusions: The proposed method for fetal heart rate determination on a beat-to-beat basis offers a high accuracy of the heart interval measurement enabling reliable quantitative assessment of the FHR variability, at the same time reducing the number of invalid cardiac cycle measurements. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5322347 Fri, 14 Oct 2011 04:00:00 +0100 5322347 http://www.medworm.com/index.php?rid=5312154&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F91 Background: The subjects in EEG-Brain computer interface (BCI) system experience difficulties when attempting to obtain the consistent performance of the actual movement by motor imagery alone. It is necessary to find the optimal conditions and stimuli combinations that affect the performance factors of the EEG-BCI system to guarantee equipment safety and trust through the performance evaluation of using motor imagery characteristics that can be utilized in the EEG-BCI testing environment. Methods: The experiment was carried out with 10 experienced subjects and 32 naive subjects on an EEG-BCI system. There were 3 experiments: The experienced homogeneous experiment, the naive homogeneous experiment and the naive heterogeneous experiment. Each experiment was compared in terms of the six audi... BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5312154 Wed, 12 Oct 2011 04:00:00 +0100 5312154 http://www.medworm.com/index.php?rid=5302525&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F90 Analysis of patterns of variation of time-series, termed variability analysis, represents a rapidly evolving discipline with increasing applications in different fields of science. In medicine and in particular critical care, efforts have focussed on evaluating the clinical utility of variability. However, the growth and complexity of techniques applicable to this field have made interpretation and understanding of variability more challenging. Our objective is to provide an updated review of variability analysis techniques suitable for clinical applications. We review more than 70 variability techniques, providing for each technique a brief description of the underlying theory and assumptions, together with a summary of clinical applications. We propose a revised classification for the do... BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5302525 Mon, 10 Oct 2011 04:00:00 +0100 5302525 http://www.medworm.com/index.php?rid=5294743&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F89 This article is a review of the book: Clinical aspects of electroporation, by Stephen T. Kee, Julie Gehl, Edward W Lee , which is published by Springer Press. Basic information that should be helpful in deciding whether to read the book and whether to use it as a reference book is presented. This includes an introduction, a description of all the sections of the book, and a comparison with recently published books on the topic. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5294743 Fri, 07 Oct 2011 04:00:00 +0100 5294743 http://www.medworm.com/index.php?rid=5282841&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F88 In this study an animal model involving seven piglets was used to examine an induced state of circulatory redistribution caused by moderate oxygen deficit. In addition to the main focus on the complex dynamics occurring during sustained normocapnic hypoxia, the development of autonomic regulation after induced reoxygenation had been analysed. For this purpose, we first introduced a new algorithm to prove stationary conditions in short-term time series. Then we investigated a multitude of indices from heart rate and blood pressure variability and from bivariate interactions, also analysing respiration signals, to quantify the complexity of vegetative oscillations influenced by hypoxia. Results: The results demonstrated that normocapnic hypoxia causes an initial increase in cardiovascular co... BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5282841 Mon, 03 Oct 2011 04:00:00 +0100 5282841 http://www.medworm.com/index.php?rid=5271016&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F87 Conclusions: The result indicated that hand radiographs which have undergone anisotropic diffusion have greatly reduced the noise in the segmented image and the result as well indicated that the BAE algorithm proposed is capable of removing the artifacts generated in adaptive segmentation. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5271016 Wed, 28 Sep 2011 04:00:00 +0100 5271016 http://www.medworm.com/index.php?rid=5258298&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F85 Conclusion: The mathematical approach presented in this study provides a useful tool for the design of electrode arrays with different shapes of conic sections by means of the use of the unifying principle. At the same time, we verify the good correspondence between the analytical and numerical solutions for the potential and electric field distributions generated by the electrode array with different conic sections. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5258298 Sat, 24 Sep 2011 04:00:00 +0100 5258298 http://www.medworm.com/index.php?rid=5258297&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F86 Conclusions: The resulting cardiovascular system model including mitral valve dynamics provides a foundation for clinical validation and the study of valvular dysfunction in vivo.The overall models and results could readily be generalised to other cardiac valves. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5258297 Sat, 24 Sep 2011 04:00:00 +0100 5258297 http://www.medworm.com/index.php?rid=5247674&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F83 Conclusions: The independent components produced from the observed data using the proposed method illustrated that the extracted signals were clearly the P300 components elicited by task-related stimuli. The experiment using 350 ms ISI showed the best performance. Since the proposed method does not use down-sampling and averaging, it can be used as a viable tool for real-time clinical applications. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5247674 Fri, 23 Sep 2011 04:00:00 +0100 5247674 http://www.medworm.com/index.php?rid=5247673&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F84 Conclusions: This study demonstrated the importance of considering the anatomy of the CoW in assessing the risk of post-CAS cerebral hyperperfusion. Particularly, since the anatomy of the CoW and the distribution pattern of stenosis in the cerebral feeding arteries jointly determine the risk and localization of post-CAS cerebral hyperperfusion, a patient-specific hemodynamic analysis aimed to help physicians identify patients at high risk of cerebral hyperperfusion should account for the combined effect of the anatomy of cerebral arteries and cerebral feeding artery stenoses on cerebral hemodynamics. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5247673 Fri, 23 Sep 2011 04:00:00 +0100 5247673 http://www.medworm.com/index.php?rid=5247675&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F82 Conclusions: The accuracy of ambulatory stride length measurement was maintained over the 24-h period, and there was 100% agreement between the autonomous detection of locomotion by the gait monitor and video observation. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5247675 Wed, 21 Sep 2011 04:00:00 +0100 5247675 http://www.medworm.com/index.php?rid=5220695&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F80 A comment on G. Litscher: Infrared thermography fails to visualize stimulation-induced meridian-like structures. Biomed. Eng. OnLine 2005, 4:38 (15 June 2005), with a response by the author. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5220695 Sun, 11 Sep 2011 04:00:00 +0100 5220695 http://www.medworm.com/index.php?rid=5205511&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F77 The detection of T-wave end points on electrocardiogram (ECG) is a basic procedure for ECG processing and analysis. Several methods have been proposed and tested, featuring high accuracy and percentages of correct detection. Nevertheless, their performance in noisy conditions remains an open problem.A new approach and algorithm for T-wave end location based on the computation of Trapezium's areas is proposed and validated (in terms of accuracy and repeatability),using signals from the Physionet QT Database. The performance of the proposed algorithm in noisy conditions has been tested and compared with one of the most used approaches for estimating the T-wave end point: the method based on the threshold on the first derivative.The results indicated that the proposed approach based on Trapez... BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5205511 Fri, 09 Sep 2011 04:00:00 +0100 5205511 http://www.medworm.com/index.php?rid=5205510&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F78 Conclusions: The ensemble average DF estimate of videocapsule images with simulated periodicity is robust to noise and spatiotemporal phase shift as compared with Fourier analysis. Accurate estimation of DF eliminates the need to impose complex masking, extraction, and/or corrective preprocessing measures. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5205510 Fri, 09 Sep 2011 04:00:00 +0100 5205510 http://www.medworm.com/index.php?rid=5205509&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F79 Conclusions: The obtained results proved that the pattern recognition of sEMG signals in seniors is feasible for both pronation and supination positions of the arm and the use of only four EMG channel is sufficient. The outcome of this study therefore validates the hypothesis that, although there are significant neurological and physical changes occurring in humans while ageing, sEMG controlled hand assistive devices could potentially be used by the older people. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5205509 Fri, 09 Sep 2011 04:00:00 +0100 5205509 http://www.medworm.com/index.php?rid=5158153&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F75 Conclusions: The baseline pressures of commercial solid ICP sensors can be altered by ESD's at discharge magnitudes that are clinically relevant. Shifts in baseline pressure change the ICP levels visualised to the physician on the monitor screen, and thereby reveal wrong ICP values, which likely represent a severe risk to the patient. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5158153 Sun, 21 Aug 2011 23:00:00 +0100 5158153 http://www.medworm.com/index.php?rid=5158152&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F76 Conclusions: The finding of significantly larger circumferential and longitudinal LV strain among normal female volunteers suggests that baseline contractile differences between the sexes may contribute to the well-recognized divergence in cardiovascular disease outcomes. Further work is needed in order to determine the pathologic changes that occur in LV strain between women and men with the onset of cardiovascular disease. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5158152 Sun, 21 Aug 2011 23:00:00 +0100 5158152 http://www.medworm.com/index.php?rid=5158154&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F74 Conclusions: The game proved to be a user-friendly tool capable to detect and quantify the influence of color on the performance of people executing tasks that require attention and showed to be attractive for people with ADHD. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5158154 Thu, 18 Aug 2011 23:00:00 +0100 5158154 http://www.medworm.com/index.php?rid=5158155&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F73 DiscussionCompared with the common reconstruction from 180 projection images, this algorithm completes CT reconstruction from only 60 projection images, cuts the scan time, and maintains the acceptable quality of the reconstructed images. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5158155 Wed, 17 Aug 2011 23:00:00 +0100 5158155 http://www.medworm.com/index.php?rid=5138386&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F72 ${item.shortDescription} (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5138386 Tue, 16 Aug 2011 23:00:00 +0100 5138386 http://www.medworm.com/index.php?rid=5118294&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F70 ${item.shortDescription} (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5118294 Wed, 10 Aug 2011 23:00:00 +0100 5118294 http://www.medworm.com/index.php?rid=5118293&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F71 ${item.shortDescription} (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5118293 Wed, 10 Aug 2011 23:00:00 +0100 5118293 http://www.medworm.com/index.php?rid=5118295&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F69 ${item.shortDescription} (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5118295 Tue, 09 Aug 2011 23:00:00 +0100 5118295 http://www.medworm.com/index.php?rid=5095362&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F68 ${item.shortDescription} (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5095362 Tue, 02 Aug 2011 23:00:00 +0100 5095362 http://www.medworm.com/index.php?rid=5095363&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F67 ${item.shortDescription} (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5095363 Mon, 01 Aug 2011 23:00:00 +0100 5095363 http://www.medworm.com/index.php?rid=5077390&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F65 ${item.shortDescription} (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5077390 Thu, 28 Jul 2011 23:00:00 +0100 5077390 http://www.medworm.com/index.php?rid=5077389&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F66 ${item.shortDescription} (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5077389 Thu, 28 Jul 2011 23:00:00 +0100 5077389 http://www.medworm.com/index.php?rid=5069165&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F64 ${item.shortDescription} (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5069165 Tue, 26 Jul 2011 23:00:00 +0100 5069165 http://www.medworm.com/index.php?rid=5050017&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F62 ${item.shortDescription} (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5050017 Wed, 20 Jul 2011 23:00:00 +0100 5050017 http://www.medworm.com/index.php?rid=5050016&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F63 ${item.shortDescription} (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5050016 Wed, 20 Jul 2011 23:00:00 +0100 5050016 http://www.medworm.com/index.php?rid=5050018&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F61 ${item.shortDescription} (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5050018 Mon, 18 Jul 2011 23:00:00 +0100 5050018 http://www.medworm.com/index.php?rid=5036002&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F60 Conclusion: This 3D test setup opens new possibilities in dynamic testing of wide range materials, like anatomical specimens, biomaterials, and its combinations. The resulting 3D-deformation dataset can be used for a better estimation of material characteristics of the underlying structures. This is an important factor in a reliable biomechanical modelling and simulation as well as in a successful design of complex implants.KeywordsVideo-based motion analysis, dynamic 3D-deformation, accuracy, pelvis (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5036002 Sat, 16 Jul 2011 23:00:00 +0100 5036002 http://www.medworm.com/index.php?rid=5018993&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F59 Conclusions: The gradings produced by AD3RI obtained an agreement with the ground truth similar to the experts (with a higher reproducibility) and significantly better than the Threshold Method. Despite the higher sensitivity of the Threshold method, explained by its over segmentation bias, it has lower specificity and lower kappa coefficient. Therefore, it can be concluded that AD3RI accurately quantifies drusen, using a reproducible method with benefits for ARMD evaluation and follow-up. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5018993 Mon, 11 Jul 2011 23:00:00 +0100 5018993 http://www.medworm.com/index.php?rid=5007695&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F58 Conclusions: In this study, strain-adaptive bone remodelling processes are simulated using the FE method. The results contribute to a better understanding of the biomechanical behaviour of the ankle joint and hence are useful for the optimisation of the implant geometry in the future. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=5007695 Mon, 04 Jul 2011 23:00:00 +0100 5007695 http://www.medworm.com/index.php?rid=4975516&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F57 Conclusions: Although the device presented adequate design and dimension to fit into the pediatric femur, mechanical tests indicated that the nail was less stable than the blade plate in bending-compression and torsion. This may be a beneficial property, and it can be attributed to the more flexible fixation found in intramedullary devices. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4975516 Mon, 27 Jun 2011 23:00:00 +0100 4975516 http://www.medworm.com/index.php?rid=4975517&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F56 Conclusions: The proposed algorithm achieves better accuracy than other state-of-the-art algorithms with no intrasubject between the training and evaluation datasets. And it significantly reduces the amount of intervention needed by physicians. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4975517 Sun, 26 Jun 2011 23:00:00 +0100 4975517 http://www.medworm.com/index.php?rid=4968177&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F55 Conclusions: Altogether, the results presented demonstrate that independent component analysis performed successfully the efficient coding in order to discriminate mass from non-mass tissues. In addition, we have observed that LDA with ICA bases showed high predictive performance for some datasets and thus provide significant support for a more detailed clinical investigation. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4968177 Thu, 23 Jun 2011 23:00:00 +0100 4968177 http://www.medworm.com/index.php?rid=4959823&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F54 Conclusions: We introduce here a simple simulating computational theory to study, from a neurophysiologic point of view, the sympathetic development of cardiovascular regulation due to feedback signals sent off by cardiovascular receptors. The model simulates, too, how the NTS, as emergent property, acts as a comparator and how its rostral afferents behave as set point. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4959823 Mon, 20 Jun 2011 23:00:00 +0100 4959823 http://www.medworm.com/index.php?rid=4944843&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F52 Conclusions: The results show that by using a simple reservoir pressure boundary condition (RPBC), we are able to capture some essential variations found in the clinical data. Our approach establishes a first-step framework of a practical patient-specific CMS, which comprises a 3-D CFD model (without involving actual hemodynamic data yet) to simulate the heart and the 4-D PC-MRI system. At this stage, the 4-D PC-MRI system is used for verification purpose rather than input. This brings us closer to our goal of developing a practical patient-specific CMS, which will be pursued next. We anticipate that in the future, this hybrid system can potentially identify possible disease conditions in LV through comprehensive analysis and facilitates physicians in early diagnosis of probable cardiac pr... BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4944843 Thu, 16 Jun 2011 23:00:00 +0100 4944843 http://www.medworm.com/index.php?rid=4944842&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F53 Conclusions: The proposed contourlet-based watermarking algorithm in this paper use an automatically selection for ROI and embed the watermark in the singular values of contourlet subbands that makes the algorithm more efficient, and robust against noise attacks than other transform domains. The embedded watermark bits can be extracted without the original image, the proposed method has high PSNR and SSIM, and the watermarked image has high transparency and can still conform to the DICOM format. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4944842 Thu, 16 Jun 2011 23:00:00 +0100 4944842 http://www.medworm.com/index.php?rid=4920858&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F51 In this study, time averaged mass and momentum conservation equations are solved analytically to obtain pressure drop-flow, delta p-Q, curves for three different percentage area blockages corresponding to moderate (64%), intermediate (80%), and severe (90%) stenoses. Stenosis is considered to be axisymmetric consisting of three different sections namely converging, throat, and diverging regions. Analytical expressions for pressure drop are obtained for each of these regions separately. Using this approach, effects of lesion length and GW insertion on the mean translesional pressure drop and its component (loss due to momentum change and viscous loss) are analyzed.Results and conclusionIt is observed that for a given percent area stenosis (AS), increase in the throat length only increases t... BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4920858 Thu, 09 Jun 2011 23:00:00 +0100 4920858 http://www.medworm.com/index.php?rid=4920859&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F50 Conclusions: The clinical significance of the effects was assessed by a clinician at the U.S. Food and Drug Administration. The effects were determined to be clinically significant only if they occurred for extended period of time. There were no observed effects from the other 5 implantable neurostimulators or during exposures from other RFID emitters. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4920859 Wed, 08 Jun 2011 23:00:00 +0100 4920859 http://www.medworm.com/index.php?rid=4911176&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F49 Conclusions: The results proved the functionality and utilization of the platform in various rural places in Greece, Cyprus and Italy. However, further actions are needed to enable the local healthcare systems and the different population groups to be familiarized with, and use in their everyday lives, mature technological solutions for the provision of healthcare services. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4911176 Mon, 06 Jun 2011 23:00:00 +0100 4911176 http://www.medworm.com/index.php?rid=4902028&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F48 Conclusions: The optimum conductive fabric sensor configuration for evaluating knee joint movements were represented by the (1, 5) pair. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4902028 Sun, 05 Jun 2011 23:00:00 +0100 4902028 http://www.medworm.com/index.php?rid=4902029&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F47 Conclusions: We expect the proposed denoising filter can be greatly used for noise reduction particularly in low-dose x-ray imaging. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4902029 Sat, 04 Jun 2011 23:00:00 +0100 4902029 http://www.medworm.com/index.php?rid=4892313&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F46 Human factors is the study of the relationship between people and devices or systems. The goal of considering human factors in the design of medical devices is to create devices that recognize the way people use technology and process information to create a man-machine interface that leads to the best possible performance. This text describes the significant aspects of human factors issues related to medical device design. It is well written and is useful for medical device designers and for others who use or evaluate medical equipment. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4892313 Thu, 02 Jun 2011 23:00:00 +0100 4892313 http://www.medworm.com/index.php?rid=4892315&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F44 Conclusions: From the results it is concluded that the Christensen criterion is recommended for FEM result interpretation in endodontic restorations and that the flexural test is recommended to estimate tensile strength instead of the diametral tensile test. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4892315 Wed, 01 Jun 2011 23:00:00 +0100 4892315 http://www.medworm.com/index.php?rid=4892314&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F45 Conclusions: In this study, a clear correlation was established between simulation and in-vivo experiments of FLA for prostate cancer. Simulation is a promising planning technique for this therapy. It needs further more evaluation to allow to FLA to become a widely applied surgical method. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4892314 Wed, 01 Jun 2011 23:00:00 +0100 4892314 http://www.medworm.com/index.php?rid=4892316&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F43 After the publication of this work [Meraz et al, Analysis of impulse oscillometric measures of lung function and respiratory system model parameters in small airway-impaired and healthy children over a 2-year period, BioMedical Engineering OnLine 2011, 10:21], we became aware of the fact that one author was missing on the author list. Dr Christine A Goldman collaborated closely in quality assuring the IOS data and contributed to the design and simplification of graphs representing and illustrating the parameter expressed as AX, the Goldman Triangle. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4892316 Tue, 31 May 2011 23:00:00 +0100 4892316 http://www.medworm.com/index.php?rid=4883257&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F42 Conclusions: We expect the application of spectrographic techniques to phonocardiography to grow substantially as ongoing research demonstrates its utility in various clinical settings. Our evaluation of a simple, low-cost phonocardiographic recording and analysis system to assist in determining the characteristic features of heart murmurs shows promise in helping distinguish innocent systolic murmurs from pathological murmurs in children and is expected to useful in other clinical settings as well. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4883257 Mon, 30 May 2011 23:00:00 +0100 4883257 http://www.medworm.com/index.php?rid=4883258&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F41 Conclusion: The results of this study revealed that the current ASR technique is not a reliable tool in recognizing the speech of dysphonic patients. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4883258 Sun, 29 May 2011 23:00:00 +0100 4883258 http://www.medworm.com/index.php?rid=4871742&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F40 Conclusions: The possibility of enhancing immune responsiveness to HIV through dynamic scheduling of treatment is exciting. Output-feedback Model Predictive Control is uniquely well-suited to solutions of these types of problems. The unique constraints of state positivity and very slow sampling are addressable by using a special-purpose nonlinear state estimator, as described in this paper. This shows the possibility of using output-feedback MPC-based algorithms for this purpose. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4871742 Thu, 26 May 2011 23:00:00 +0100 4871742 http://www.medworm.com/index.php?rid=4871743&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F39 Conclusions: Thus although the current method has valuable and significant capabilities in terms of study or test protocol design, additional developments would further strengthen the predictive capability of the method. Finally, the method captures the experimental reality that sampling error and timing can negate assumed parameter identifiability and that identifiability is a continuous rather than discrete phenomenon. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4871743 Wed, 25 May 2011 23:00:00 +0100 4871743 http://www.medworm.com/index.php?rid=4862226&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F38 Conclusion: An original tool for EEG signal processing giving physicians the possibility to diagnose brain functionality abnormalities is presented in this paper. The proposed system bears the potential of providing several credible benefits such as fast diagnosis, high accuracy, good sensitivity and specificity, time saving and user friendly. Furthermore, the classification of mode mixing can be achieved using the extracted instantaneous information of every IMF, but it would be most likely a hard task if only the average value is used. Extra benefits of this proposed system include low cost, and ease of interface. All of that indicate the usefulness of the tool and its use as an efficient diagnostic tool. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4862226 Mon, 23 May 2011 23:00:00 +0100 4862226 http://www.medworm.com/index.php?rid=4840966&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F37 Conclusions: This new method based on mfERG analysis may be reliable enough to detect functional deficits that are not apparent using current automated perimetry tests. As new stimulation and analysis protocols develop, mfERG has the potential to become a useful tool in early detection of glaucoma-related functional deficits. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4840966 Mon, 16 May 2011 23:00:00 +0100 4840966 http://www.medworm.com/index.php?rid=4820503&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F36 Background: Cardiac output (CO) is an important determinant of the hemodynamic state in patients with congestive heart failure (CHF). We tested the hypothesis that CO can be estimated from the right ventricular (RV) pressure waveform in CHF patients using a pulse contour cardiac output algorithm that considers constant but patient specific RV outflow tract characteristic impedance.MethodIn 12 patients with CHF, breath-by-breath Fick CO and RV pressure waveforms were recorded utilizing an implantable hemodynamic monitor during a bicycle exercise protocol. These data were analyzed retrospectively to assess changes in characteristic impedance of the RV outflow tract during exercise. Four patients that were implanted with an implantable cardiac defibrillator (ICD) implementing the algorithm we... BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4820503 Thu, 12 May 2011 23:00:00 +0100 4820503 http://www.medworm.com/index.php?rid=4820504&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F35 Background: Representation of independent biophysical sources using Fourier analysis can be inefficient because the basis is sinusoidal and general. When complex fractionated atrial electrograms (CFAE) are acquired during atrial fibrillation (AF), the electrogram morphology depends on the mix of distinct nonsinusoidal generators. Identification of these generators using efficient methods of representation and comparison would be useful for targeting catheter ablation sites to prevent arrhythmia reinduction.MethodA data-driven basis and transform is described which utilizes the ensemble average of signal segments to identify and distinguish CFAE morphologic components and frequencies. Calculation of the dominant frequency (DF) of actual CFAE, and identification of simulated independent gene... BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4820504 Wed, 11 May 2011 23:00:00 +0100 4820504 http://www.medworm.com/index.php?rid=4753462&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F32 Conclusion: Both examined magnesium alloys did not cause significantly increased morphological changes in efferent lymph nodes in comparison to the widely used implant materials titanium and PLA. LAE442 induced even lower immunological reactions. Therewith MgCa0.8 and especially LAE442 are appropriate candidates for biomedical use. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4753462 Mon, 25 Apr 2011 23:00:00 +0100 4753462 http://www.medworm.com/index.php?rid=4753461&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F33 Conclusion: Each published cardiovascular model has merit for particular applications. This review categorises 0D and 1D models, highlights their advantages and disadvantages, and thus provides guidance on the selection of models to assist various cardiovascular modelling studies. It also identifies directions for further development, as well as current challenges in the wider use of these models including service to represent boundary conditions for local 3D models and translation to clinical application. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4753461 Mon, 25 Apr 2011 23:00:00 +0100 4753461 http://www.medworm.com/index.php?rid=4733565&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F30 Conclusions: The method for liver segmentation performed well, according to the results of the numerical evaluation implemented, and the segmentation of liver internal structures were consistent with the anatomy of the liver, as confirmed by a specialist. The analysis provided evidences that the method to segment the liver may be applied to segment other organs, especially to those whose distribution of voxel intensities is nearly Gaussian shaped. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4733565 Tue, 19 Apr 2011 23:00:00 +0100 4733565 http://www.medworm.com/index.php?rid=4733564&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F31 We have now sufficient evidence that using electrical biosignals in the field of Alternative and Augmented Communication is feasible. Additionally, they are particularly suitable in the case of people with severe motor impairment, e.g. people with high-level spinal cord injury or with locked-up syndrome. Developing solutions for them implies that we find ways to use sensors that fit the users needs and limitations, which in turn impacts the specifications of the system translating the user's intentions into commands. After devising solutions for a given user or profile, the system should be evaluated with an appropriate method, allowing a comparison with other solutions. This paper submits a review of the way three bioelectrical signals - electromyographic, electrooculographic and electroe... BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4733564 Tue, 19 Apr 2011 23:00:00 +0100 4733564 http://www.medworm.com/index.php?rid=4733566&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F29 Conclusions: The HMM implementation of a seizure dynamics detector is an improvement over existing approaches using visual detection and complexity measures. The subjectivity involved in partitioning the observed data prior to training can be eliminated. It can also decipher the probabilities of seizure state transitions using the magnitude and rate of change wavelet information of the LFPs. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4733566 Mon, 18 Apr 2011 23:00:00 +0100 4733566 http://www.medworm.com/index.php?rid=4714573&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F28 Conclusions: Therefore, the presented new gas flow method appears to be a simple and robust method to compare different implant systems. It allows successive measures without disconnecting the abutment from the implant and should in particular be used to assess the behavior of the connection before and after mechanical stress. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4714573 Wed, 13 Apr 2011 23:00:00 +0100 4714573 http://www.medworm.com/index.php?rid=4704384&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F27 The objective of this study was to validate HRV obtained using a commonly used system, Actiheart, during occupational and leisure-time activities.MethodFull-day ambulatory electrocardiography (ECG) signals were recorded from 8 females simultaneously using Actiheart and Holter recorders, and signals were processed to RR-interval time series. Segments of 5-minute duration were sampled every 30 minutes, and spectral components of the heart rate variability were calculated. Actiheart and Holter values were compared using Deming regression analysis and Bland-Altman plots. Results: In total, 489 segments were available with an HRV value from both Actiheart and Holter recordings after filtering out segments with >10% interpolated beats. No systematic differences between Actiheart and Holter HRV w... BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4704384 Mon, 11 Apr 2011 23:00:00 +0100 4704384 http://www.medworm.com/index.php?rid=4696485&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F26 Conclusion: We have proposed an automated system which is able to detect carotid artery boundary in MRI sequences during heart cycles. The accuracy reaches 2.56%+-2.10% compared to the manual tracings. The system is stable, reliable and results are reproducible. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4696485 Sun, 10 Apr 2011 23:00:00 +0100 4696485 http://www.medworm.com/index.php?rid=4693058&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F25 Conclusions: For the stiff and intermediate intima models, the most important morphological risk factor for cap rupture was the cap thickness. However, for soft intima models, the necrotic core thickness and necrotic core angle had a bigger impact on the peak cap stress. In order to derive critical morphological plaque features for risk evaluation, we need to enhance our knowledge of intima material properties. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4693058 Thu, 07 Apr 2011 23:00:00 +0100 4693058 http://www.medworm.com/index.php?rid=4676465&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F24 We describe in detail the development of a smartphone app within eCAALYX (Enhanced Complete Ambient Assisted Living Experiment, 2009-2012), an EU-funded project for older people with multiple chronic conditions. The eCAALYX Android smartphone app receives input from a BAN (a patient-wearable smart garment with wireless health sensors) and the GPS (Global Positioning System) location sensor in the smartphone, and communicates over the Internet with a remote server accessible by healthcare professionals who are in charge of the remote monitoring and management of the older patient with multiple chronic conditions. Finally, we briefly discuss barriers to adoption of health and healthcare smartphone apps (e.g., cost, network bandwidth and battery power efficiency, usability, privacy issues, et... BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4676465 Mon, 04 Apr 2011 23:00:00 +0100 4676465 http://www.medworm.com/index.php?rid=4669973&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F23 Conclusions: The proposed algorithm exhibits reliable QRS detection as well as accurate ECG delineation, in spite of a simple structure built on integer linear algebra. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4669973 Sat, 02 Apr 2011 23:00:00 +0100 4669973 http://www.medworm.com/index.php?rid=4642352&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F22 Conclusions: This paper presents a novel and robust methodology in morphological heart arrhythmia detection. The methodology based on the Hermite model of the Higher-Order Statistics (HOS). The ability of HOS in suppressing morphological variations of different class-specific arrhythmias and also reducing the effects of Gaussian noise, made HOS, suitable for detection morphological heart arrhythmias. The proposed method exploits these properties in conjunction with Hermitian model to perform an efficient and reliable classification approach to detect five morphological heart arrhythmias. And the time consumption of this method for each beat is less than the period of a normal beat. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4642352 Sun, 27 Mar 2011 23:00:00 +0100 4642352 http://www.medworm.com/index.php?rid=4636254&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F21 Conclusions: What are the most useful IOS and model parameters?In this work we demonstrate that IOS parameters such as resistance at 5 Hz (R5), frequency-dependence of resistance (fdR: R5-R20), reactance area (AX), and parameter estimates of respiratory system such as Cp and Rp provide sensitive indicators of lung function and have the capacity to differentiate between obstructed and non-obstructed airway conditions. They are also capable of demonstrating airway growth-related changes over a two-year period.We conclude that the IOS parameters AX and the eRIC model derived parameter Cp are the most reliable parameters to track lung function in children before and after bronchodilator and over a time period (2 years).Which model is more suitable for interpreting IOS data?IOS data are equally... BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4636254 Fri, 25 Mar 2011 00:00:00 +0100 4636254 http://www.medworm.com/index.php?rid=4622008&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F20 Conclusions: This study demonstrates that MRSA adhesion to endothelial cells is strongly influenced by flow conditions and time, and that MSRA adhere in greater numbers to regions of low shear stress. These areas are common in arterial bifurcations, locations also susceptible to generation of atherosclerosis. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4622008 Tue, 22 Mar 2011 00:00:00 +0100 4622008 http://www.medworm.com/index.php?rid=4554478&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F19 Conclusions: These findings are essential for the advancement of laser-assisted bioprinting by enabling predictable printing results and the integration of computational methods in the generation of 3D multi-cellular constructs. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4554478 Mon, 07 Mar 2011 00:00:00 +0100 4554478 http://www.medworm.com/index.php?rid=4549589&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F18 Conclusions: The presented model incorporates structural features related to waviness and orientational distribution of collagen fibres and thus offers possibilities to better understand the relation between structure and function in the vascular wall. Also the model can be used to further study mechanically induced collagen remodelling in vascular tissue in health and disease. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4549589 Fri, 04 Mar 2011 00:00:00 +0100 4549589 http://www.medworm.com/index.php?rid=4540392&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F17 Conclusions: The concordant reduction and enhancement in CCM values with parasympathetic activity indicates that the temporal variability of Poincare plot is modulated by the parasympathetic activity which correlates with changes in CCM values. CCM is more sensitive than SD1 and SD2 to changes of parasympathetic activity. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4540392 Thu, 03 Mar 2011 00:00:00 +0100 4540392 http://www.medworm.com/index.php?rid=4527567&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F16 This article reviews the book - 'Applied Medical Image Processing - A Basic Course', by Wolfgang Birkfellner, which is published by CRC Press. Basic information that should be helpful in deciding whether to read the book and whether to use it as a course textbook is presented. This includes an introduction, the suitability of the book for use in coursework, its coverage of medical imaging and image processing, discussion and conclusions, and an appendix with a relevant computer program for extracting medical images. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4527567 Sun, 27 Feb 2011 00:00:00 +0100 4527567 http://www.medworm.com/index.php?rid=4482632&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F15 Conclusions: Real-time forecasting using the discrete time stochastic model with its simple computation of the uncertainty bounds was successful. Because of the simplistic model structure, the proposed model has the potential to additionally account for various types of heterogeneity, time-dependent transmission dynamics and epidemiological details. The impact of such complexities on forecasting should be explored when the data become available as part of the disease surveillance. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4482632 Wed, 16 Feb 2011 00:00:00 +0100 4482632 http://www.medworm.com/index.php?rid=4455105&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F13 Conclusion: The proposed method showed promising results and high noise robustness to a wide range of heart sounds. However, more tests are needed to address any bias that may have been introduced by different sources of heart sounds in the current training set, and to concretely validate the method. Further work include building a new training set recorded from actual patients, then further evaluate the method based on this new training set. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4455105 Wed, 09 Feb 2011 00:00:00 +0100 4455105 http://www.medworm.com/index.php?rid=4455104&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F14 IntroductionA novel system that combines a compact mobile instrument and Internet communications is presented in this paper for remote evaluation of tremors. The system presents a high potential application in Parkinson's disease and connects to the Internet through a TCP/IP protocol. Tremor transduction is carried out by accelerometers, and the data processing, presentation and storage were obtained by a virtual instrument. The system supplies the peak frequency (fp), the amplitude (Afp) and power in this frequency (Pfp), the total power (Ptot), and the power in low (1-4 Hz) and high (4-7 Hz) frequencies (Plf and Phf, respectively). Methods: The ability of the proposed system to detect abnormal tremors was initially demonstrated by a fatigue study in normal subjects. In close agreement wi... BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4455104 Wed, 09 Feb 2011 00:00:00 +0100 4455104 http://www.medworm.com/index.php?rid=4424012&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F12 Conclusions: The description of the non-proprietary measurement device with very good levels of accuracy and precision may provide opportunities for new, cost effective applications of stereophotogrammetrical analysis in musculoskeletal research projects, focusing on kinematics of small displacements in a small measurement volume. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4424012 Tue, 01 Feb 2011 00:00:00 +0100 4424012 http://www.medworm.com/index.php?rid=4405486&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F11 Conclusions: While the MRI data may provide a common input that can be applied to different numerical heart models the verification and comparison of different models can be performed by comparing the measured biosignals with forward calculated signals from the models. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4405486 Thu, 27 Jan 2011 00:00:00 +0100 4405486 http://www.medworm.com/index.php?rid=4405487&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F10 Conclusions: The presented algorithm does allow for the quantification of nondeterministic events but proper care in signal acquisition and processing must be taken to obtain meaningful results. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4405487 Wed, 26 Jan 2011 00:00:00 +0100 4405487 http://www.medworm.com/index.php?rid=4399308&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F9 Background: Electric fields are integral to many biological events, from maintaining cellular homeostasis to embryonic development to healing. The application of electric fields offers substantial therapeutic potential, while optimal dosing regimens and the underlying mechanisms responsible for the positive clinical impact are poorly understood. Methods: The purpose of this study was to track the differentiation profile and stress response of human bone marrow derived mesenchymal stem cells (hMSCs) undergoing osteogenic differentiation during exposure to a 20 mV/cm, 60 kHz electric field. Morphological and biochemical changes were imaged using endogenous two-photon excited fluorescence (TPEF) and quantitatively assessed through eccentricity calculations and extraction of the redox ratio fr... BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4399308 Wed, 26 Jan 2011 00:00:00 +0100 4399308 http://www.medworm.com/index.php?rid=4394098&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F8 Conclusions: CLabUZH is a user-friendly interactive computer programme that has proved to be useful in teaching the basic physiological principles of heart mechanics. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4394098 Tue, 25 Jan 2011 00:00:00 +0100 4394098 http://www.medworm.com/index.php?rid=4377387&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F7 Conclusions: Multi-view 3D reconstruction from sparse 2D freehand B-mode images leads to more accurate volume quantification compared to single view systems. The flexibility and low-cost of the proposed system allow for fine control of the image acquisition planes for optimal 3D reconstructions from multiple views. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4377387 Thu, 20 Jan 2011 00:00:00 +0100 4377387 http://www.medworm.com/index.php?rid=4371772&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F6 Conclusions: Based on the overall performance of the system it can be stated that the proposed methodology is a promising new approach for the feature extraction and classification of FHR signals. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4371772 Wed, 19 Jan 2011 00:00:00 +0100 4371772 http://www.medworm.com/index.php?rid=4360765&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F4 Conclusion: Hypertrophy is diminished by culturing growth plate chondrocytes on nitrogen-rich surfaces a mechanism that is beneficial for MSC chondrogenesis. Furthermore, one major advantage of such "intelligent surfaces" over recombinant growth factors for tissue engineering and cartilage repair is potentially large cost-saving. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4360765 Tue, 18 Jan 2011 00:00:00 +0100 4360765 http://www.medworm.com/index.php?rid=4360764&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F5 Conclusion: The ABST system offers unique advantages over traditional between-group study paradigms that include improved data quality and significantly reduced animal use. The superior within-group model facilitates assessment of multiple physiological and biochemical responses to test compounds in the same animal. The ABST also provides opportunities to evaluate temporal relations between parameters and to investigate anomalous outlier events because drug concentrations, physiological and biochemical measures for each animal are available for comparisons. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4360764 Tue, 18 Jan 2011 00:00:00 +0100 4360764 http://www.medworm.com/index.php?rid=4349375&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F3 Conclusions: Result of this study may help speech pathologists follow up voice disorder recovery in children with cochlear implantation or hearing aid who are in the same age range. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4349375 Fri, 14 Jan 2011 00:00:00 +0100 4349375 http://www.medworm.com/index.php?rid=4337741&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F2 Conclusions: These results, at least preliminarily, appear acceptable and still call for full clinical test. The model seems promising, especially if other parameters were taken into account, such as blood cardiac enzyme concentrations, ischemic or infarcted epicardial areas or ejection fraction. It is concluded, considering these results and a few references found in the literature, that the allometric model shows good predictive practical value to aid medical decisions. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4337741 Thu, 13 Jan 2011 00:00:00 +0100 4337741 http://www.medworm.com/index.php?rid=4326843&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F10%2F1%2F1 No description available (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4326843 Sun, 09 Jan 2011 00:00:00 +0100 4326843 http://www.medworm.com/index.php?rid=4265202&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F85 Background: We evaluated the influence of chemical disinfection and accelerated aging on the dimensional stability and detail reproduction of a silicone elastomer containing one of two opacifiers. Methods: A total of 90 samples were fabricated from Silastic MDX 4-4210 silicone and divided into groups (n=10) according to opacifier content (barium sulfate or titanium dioxide) and disinfectant solution (neutral soap, Efferdent, or 4% chlorhexidine). The specimens were disinfected 3 times per week during 60 days and then subjected to accelerated aging for 1008 hours. Dimensional stability and detail reproduction tests were performed after specimens' fabrication (baseline), chemical disinfection and periodically during accelerated aging (252, 504, and 1008 hours). The results were analyzed usin... BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4265202 Thu, 16 Dec 2010 00:00:00 +0100 4265202 http://www.medworm.com/index.php?rid=4258547&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F84 This study uses matched cohorts from a TGC clinical trial to validate virtual patients and in-silico virtual trial models and methods. Methods: Data from a 211 patient subset of the Glucontrol trial in Liege, Belgium. Glucontrol-A (N=142) targeted 4.4-6.1mmol/L and Glucontrol-B (N=69) targeted 7.8-10.0mmol/L. Cohorts were matched by APACHE II score, initial BG, age, weight, BMI and sex (p>0.25). Virtual patients are created by fitting a clinically validated model to clinical data, yielding time varying insulin sensitivity profiles (SI(t)) that drives in-silico patients.Model fit and intra-patient (forward) prediction errors are used to validate individual in-silico virtual patients. Self-validation (tests A protocol on Group-A virtual patients; and B protocol on B virtual patients) and cro... BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4258547 Tue, 14 Dec 2010 00:00:00 +0100 4258547 http://www.medworm.com/index.php?rid=4241529&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F82 Conclusions: This paper presents a novel on-line approach for analysing NIRS data for functional brain mapping applications. This approach demonstrates the potential of a real-time-updating topographic brain activation map. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4241529 Wed, 08 Dec 2010 00:00:00 +0100 4241529 http://www.medworm.com/index.php?rid=4203044&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F80 The application of positive end expiratory pressure (PEEP) in mechanically ventilated (MV) patients with acute respiratory distress syndrome (ARDS) decreases cardiac output (CO). Accurate measurement of CO is highly invasive and is not ideal for all MV critically ill patients. However, the link between the PEEP used in MV, and CO provides an opportunity to assess CO via MV therapy and other existing measurements, creating a CO measure without further invasiveness.This paper examines combining models of diffusion resistance and lung mechanics, to help predict CO changes due to PEEP. The CO estimator uses an initial measurement of pulmonary shunt, and estimations of shunt changes due to PEEP to predict CO at different levels of PEEP. Inputs to the cardiac model are the PV loops from the vent... BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4203044 Thu, 25 Nov 2010 00:00:00 +0100 4203044 http://www.medworm.com/index.php?rid=4196817&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F78 Conclusions: A new instrumentation for skin impedance measurements is presented. The following hypotheses suggested by our results will have to be tested in further studies: Needle acupuncture causes significant, specific local changes of electrical skin impedance parameters. Optical stimulation (violet laser) at an acupoint causes direct electrical biosignal changes. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4196817 Tue, 23 Nov 2010 00:00:00 +0100 4196817 http://www.medworm.com/index.php?rid=4189943&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F77 Conclusion: Our results reveal that the electronic nose technology is a promising and convenient alternative for classifying microorganisms that cause root canal infections. With our comprehensive approach, we have also determined optimal settings to obtain higher classification performance using this technology and discriminant analysis. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4189943 Mon, 22 Nov 2010 00:00:00 +0100 4189943 http://www.medworm.com/index.php?rid=4186834&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F76 Conclusions: This study quantified associations between deepening anaesthesia and increase in bicoherence for different frequency components and bicoherence estimates. Increase in bicoherence was also established for eye movement artifacts. While identified associations extend earlier findings of bicoherence changes with increases in anaesthetic drug concentration, results indicate that the unequal band bifrequency region, delta_theta, provides better predictive capabilities than equal band bifrequency regions. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4186834 Sat, 20 Nov 2010 00:00:00 +0100 4186834 http://www.medworm.com/index.php?rid=4175470&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F74 Conclusions: In contrast to previously documented research the difference between the two methods was found to be negligible. This study demonstrates that the 1 and 3 step method are computationally equivalent and can thus be used interchangeably in musculoskeletal modelling technology. It is important that future work clarifies the influence of the other inverse dynamics methods on the calculation of inter-segmental moments. Equally future work is needed to explore the sensitivity of kinematics computations to the choice of rotation parameterization. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4175470 Wed, 17 Nov 2010 00:00:00 +0100 4175470 http://www.medworm.com/index.php?rid=4158887&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F72 Conclusions: Although the evaluation methods proposed here were applied to standard processing techniques, these methods can also be considered as alternatives tools to evaluate new processing techniques in different areas of electrophysiology. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4158887 Fri, 12 Nov 2010 00:00:00 +0100 4158887 http://www.medworm.com/index.php?rid=4158888&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F70 Conclusions: Taken together, we have demonstrated a direct influence of the 3D-scaffold formation on the survival and neuronal differentiation of human neural progenitor cells. These findings emphasize the importance of optimizing 3D-scaffolds protocols prior to in vivo engraftment of stem and progenitor cells in the context of regenerative medicine. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4158888 Thu, 11 Nov 2010 00:00:00 +0100 4158888 http://www.medworm.com/index.php?rid=4151350&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F69 Conclusions: As compared to previous one dimensional heat distribution models, the current two dimensional model provides new possibilities for detailed studies relating CO2 laser stimulation intensity, temperature levels and nociceptor activation. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4151350 Mon, 08 Nov 2010 00:00:00 +0100 4151350 http://www.medworm.com/index.php?rid=4133296&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F65 Conclusions: At higher frequencies the major signal contribution can be shifted toward outer shell volume. This enables probing the conductivity distribution of the subject by weighting outer structural components. The authors expect that the loss changing rate over frequency can be a potential index for body composition analysis. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4133296 Thu, 04 Nov 2010 00:00:00 +0100 4133296 http://www.medworm.com/index.php?rid=4133295&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F66 Conclusion: The presented numerical study of gene electrotransfer is the first that demonstrates optimization of parameters for gene electrotransfer on tissue level. Our method of modeling and optimization is generic and can be applied to different electrode configurations, pulsing protocols and different tissues. Such numerical models, together with knowledge of tissue properties can provide useful guidelines for researchers and physicians in selecting optimal parameters for in vivo gene electrotransfer, thus reducing the number of animals used in studies of gene therapy and DNA vaccination. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4133295 Thu, 04 Nov 2010 00:00:00 +0100 4133295 http://www.medworm.com/index.php?rid=4133294&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F67 Conclusions: We have developed a self-actuating, self-sensing device for detecting the presence of endothelial cells on a surface. The device is biocompatible and functions reliably in ionic liquids, making it appropriate for implantable applications. This sensor can be placed along the struts of a coronary stent to detect when the struts have been covered with a layer of endothelial cells and are no longer available surfaces for clot formation. Anti-platelet therapy can be adjusted in real-time with respect to a patient's level of healing and hemorrhaging risks. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4133294 Thu, 04 Nov 2010 00:00:00 +0100 4133294 http://www.medworm.com/index.php?rid=4133293&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F68 Biomedical engineering is clearly present in modern neuroendocrinology, and indeed has come to embrace it in many respects. First, we briefly review the origins of endocrinology until neuroendocrinology, after a long saga, was established in the 1950's decade with quantified results made possible by the radioimmunoassay technique (RIA), a development contributed by the physical sciences. However, instrumentation was only one face of the quantification process, for mathematical models aiding in the study of negative feedback loops, first rather shyly and now at a growing rate, became means building the edifice of mathematical neuroendocrinology while computer assisted techniques help unravel the associated genetic aspects or the nature itself of endocrine bursts by numerical deconvolution a... BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4133293 Thu, 04 Nov 2010 00:00:00 +0100 4133293 http://www.medworm.com/index.php?rid=4118156&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F64 Conclusions: These results provide another support to neural control of motor prosthesis based on EEG signals and proper decoding methods. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4118156 Wed, 27 Oct 2010 23:00:00 +0100 4118156 http://www.medworm.com/index.php?rid=4105441&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F62 Conclusions: The promising pattern recognition performance demonstrates the existence of discriminatory patterns in hemodynamic data that can indicate impending hypotension. The poor PPVs discourage a direct HE predictor, but a hypotensive risk stratifier based on the pattern recognition algorithms of this study would be of significant clinical value in busy ICU environments. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4105441 Sun, 24 Oct 2010 23:00:00 +0100 4105441 http://www.medworm.com/index.php?rid=4081771&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F61 Conclusion: The proposed framework allows to extract more reliable statistics about the ICP waveform morphology on challenging pulses to investigate the predictive power of these pulses on the condition of the patient. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4081771 Mon, 18 Oct 2010 23:00:00 +0100 4081771 http://www.medworm.com/index.php?rid=4077023&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F60 Conclusions: Three-millimeter-thick magnetic resonance image slices acquired with a 1.5 T clinical magnetic resonance scanner seem to be sufficient for texture analysis of multiple sclerosis plaques and white matter tissue. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4077023 Sun, 17 Oct 2010 23:00:00 +0100 4077023 http://www.medworm.com/index.php?rid=4060354&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F59 Conclusions: For the dental practitioner it is of interest to learn that use of glycine in air polishing generates the least surface roughening on the considered restorative material, and thus is expected to provide the lowest rate of bacterial biofilm growth and dental plaque formation. Furthermore, the least roughening behaviour identified has been correlated with the disappearance of the surface fractal character, which could represent an integrative method for screening the air polishing treatment efficacy. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4060354 Mon, 11 Oct 2010 23:00:00 +0100 4060354 http://www.medworm.com/index.php?rid=4044890&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F58 Conclusions: The major contributions of this novel classification scheme were to define and verify by logistic models a 'GUESS' category in these psychophysical threshold detection experiments, and to add an additional descriptor, "PSEUDO HIT". This improved classification methodology potentially could be applied to psychophysical detection experiments of other sensory modalities. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4044890 Thu, 07 Oct 2010 23:00:00 +0100 4044890 http://www.medworm.com/index.php?rid=4036361&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F57 Conclusion: The understanding of cell behavior relies on precise information about the temporal dynamics and spatial distribution of cells. Such information may play a key role in disease research and regenerative medicine, so automated methods for observation and measurement of cells from microscopic images are in high demand. The proposed method in this paper is capable of localizing single cells in microwells and can be adapted for the other cell types that may not have circular shape. This method can be potentially used for single cell analysis to study the temporal dynamics of cells. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4036361 Tue, 05 Oct 2010 23:00:00 +0100 4036361 http://www.medworm.com/index.php?rid=4012765&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F56 In this study, we have examined local non-viral gene delivery, transfection, and therapeutic efficacy of endothelial nitric oxide synthase (eNOS) encoding plasmid DNA administered using coated stents in a rabbit iliac artery restenosis model. Methods: Lipopolyplexes (LPPs) with eNOS expressing plasmid DNA were immobilized on stainless steel stents using poly(D,L-lactide-co-glycolide) (PLGA) and type B gelatin coatings. The gene-eluting stents were implanted bilaterally in the denuded iliac arteries and eNOS transfection and therapeutic efficacy were examined 14 days after implantation. Results: The results show that non-viral lipopolyplex-coated stents can efficiently tranfect eNOS locally in the arterial lumen assessed by PCR and ELISA. Human eNOS ELISA levels were significantly raised 24... BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=4012765 Sun, 26 Sep 2010 23:00:00 +0100 4012765 http://www.medworm.com/index.php?rid=3998686&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F55 Cancer remains one of the leading causes of death. Research and resulting technologies have contributed to rising numbers of cancer survivors. Cancer nanotechnology is a novel and burgeoning field with the promise to open the door for the development of improved cancer therapies and detection methods. Cancer nanotechnology has the potential to become clinical reality. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=3998686 Thu, 23 Sep 2010 23:00:00 +0100 3998686 http://www.medworm.com/index.php?rid=3986798&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F54 Conclusions: For further improvement, a faster medical image resizing method is currently being investigated to reduce the computation time, while maintaining the same image quality. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=3986798 Sun, 19 Sep 2010 23:00:00 +0100 3986798 http://www.medworm.com/index.php?rid=3980552&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F53 Robert Splinter (Ed):Handbook of Physics in Medicine and Biology.CRC Press, Taylor & Francis Group, 2010, ISBN 978-1-4200-7524-3, 548 pages (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=3980552 Fri, 17 Sep 2010 23:00:00 +0100 3980552 http://www.medworm.com/index.php?rid=3976353&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F52 Conclusions: Our approach allows us to perform content aware video resizing in real time using only information from previous frames to avoid jitter. Also our method has a great benefit over the ordinary resizing method and even over other image retargeting methods. We show that the benefit derived from this algorithm is significant to patients with fields of view 20degrees or less. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=3976353 Wed, 15 Sep 2010 23:00:00 +0100 3976353 http://www.medworm.com/index.php?rid=3972656&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F51 Conclusions: The proposed nonlinear model generates more accurate results than the linear models. When guided by limited intra-operative surface data, it predicts deformation of entire brain. Its execution time is however considerably more than those of linear models. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=3972656 Tue, 14 Sep 2010 23:00:00 +0100 3972656 http://www.medworm.com/index.php?rid=3968861&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F50 Conclusions: The results of these initial experiments in non-amputees indicate that the proposed tactile display, in its simple form, can be used to relocate tactile input from an artificial hand to the forearm and that the system can coexist with a myoelectric control systems. The proposed system may be a valuable addition to users of myoelectric prosthesis providing conscious sensory feedback during manipulation of objects. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=3968861 Mon, 13 Sep 2010 23:00:00 +0100 3968861 http://www.medworm.com/index.php?rid=3965239&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F49 Conclusions: A new model of splint based on NiTi alloy has been designed, simulated and tested comparing its behaviour with two of the most regularly used splints. Its uses is recommended instead of other dynamic orthosis used in orthopaedics for the PIP joint. Besides, its extremely simple design, makes its manufacture and use on the part of the specialist easier. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=3965239 Sun, 12 Sep 2010 23:00:00 +0100 3965239 http://www.medworm.com/index.php?rid=3957710&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F48 This study was performed to evaluate the effect of several sterilization methods on the mechanical behavior of human cortical bone graft and histopathology evaluation of tumour bone samples after being processed with 4 different methods of sterilization. Fresh human cortical tumour bone is harvested from the diaphyseal region of the tumour bone were sterilized by autoclave (n =10); boiling (n =10); pasteurization (n =10); and irradiation (n =10). There were also 10 control specimens that did not receive any form of sterilization treatment. The biomechanical test conducted were stress to failure, modulus and strain to failure, which were determined from axial compression testing. Statistical analysis (ANOVA) was performed on these results. Significance level (alpha) and power (beta) were se... BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=3957710 Thu, 09 Sep 2010 23:00:00 +0100 3957710 http://www.medworm.com/index.php?rid=3942640&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F47 Conclusion: A new biocompatible chitosan adhesive has been developed that bonds photochemically to tissue with minimal temperature increase. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=3942640 Tue, 07 Sep 2010 23:00:00 +0100 3942640 http://www.medworm.com/index.php?rid=3938210&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F45 Conclusions: This study clearly shows that OpenMEEG represents the state of the art for forward computations. Moreover, our software development strategies have made it handy to use and to integrate with other packages. The bioelectromagnetic research community should therefore be able to benefit from OpenMEEG with a limited development effort. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=3938210 Sun, 05 Sep 2010 23:00:00 +0100 3938210 http://www.medworm.com/index.php?rid=3938209&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F46 Conclusions: The electrical impedance values of 21 root canals were in vivo studied. The results confirm the ability of EFLs that are based on the ratio method to accurately locate the AF position and explain why they are unable to determine the file tip position along the root canal. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=3938209 Sun, 05 Sep 2010 23:00:00 +0100 3938209 http://www.medworm.com/index.php?rid=3907422&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F41 Conclusions: The results of this study showed that classification of EMG signals by separating different levels of torque is possible for wrist motion and the use of only four EMG channels is suitable. The study also showed that SVM classification technique is suitable for real-time classification of sEMG signals and can be effectively implemented for controlling an exoskeleton device for assisting the wrist. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=3907422 Wed, 25 Aug 2010 23:00:00 +0100 3907422 http://www.medworm.com/index.php?rid=3885190&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F40 Conclusions: Our algorithm performs well in terms of robustness, automation, adaptability, and applicability. In particular, the successful development of two novel operators, namely, PTO and SPD, ensures the performance of our algorithm in vessel tracking. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=3885190 Thu, 19 Aug 2010 23:00:00 +0100 3885190 http://www.medworm.com/index.php?rid=3885191&cid=s_34018_169_f&fid=34018&url=http%3A%2F%2Fwww.biomedical-engineering-online.com%2Fcontent%2F9%2F1%2F39 Conclusion: This study, in general, showed that RR-interval based classification, which requires only single-lead ECG, is feasible for sleep stage and apneaic epoch determination and can pave the road for a simple automatic classification system suitable for home-use. (Source: BioMedical Engineering OnLine) BioMedical Engineering OnLine journals http://www.medworm.com/rss/comments.php?id=3885191 Wed, 18 Aug 2010 23:00:00 +0100 3885191