Journal of Medical SystemsThis is an RSS file. You can use it to subscribe to this data in your favourite RSS reader, such as GoogleReader, or to display this data on your own website or blog. Subscribe to this data using MyMedWorm.Subscribe to this data using GoogleReader.Subscribe to this data using Bloglines.Subscribe to this data using MyYahoo.

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399 records returned

Development of a Portable Linux-Based ECG Measurement and Monitoring SystemEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract This work presents a portable Linux-based electrocardiogram (ECG) signals measurement and monitoring system. The proposed system consists of an ECG front end and an embedded Linux platform (ELP). The ECG front end digitizes 12-lead ECG signals acquired from electrodes and then delivers them to the ELP via a universal serial bus (USB) interface for storage, signal processing, and graphic display. The proposed system can be installed anywhere (e.g., offices, homes, healthcare centers and ambulances) to allow people to self-monitor their health conditions at any time. The proposed system also enables r...
Source: Journal of Medical Systems - November 13, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Vocabularies and Retrieval Tools in Biomedicine: Disentangling the Terminological KnotEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
We examined some important (bio)medical systems for their compatibility with the definitions proposed in the first part of this paper. To conclude, an overview of these systems and their classification into the three domains is given. Content Type Journal ArticleCategory Original PaperDOI 10.1007/s10916-009-9389-zAuthors Klaar Vanopstal, University College Ghent Faculty of Translation Studies Ghent BelgiumRobert Vander Stichele, Ghent University Faculty of Medicine and Health Sciences, Heymans Institute of Pharmacology Ghent BelgiumGodelieve Laureys, Ghent University Faculty of Arts and Philosophy, Department of Nord...
Source: Journal of Medical Systems - November 11, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Predicting Arterial Blood Gas Values from Venous Samples in Patients with Acute Exacerbation Chronic Obstructive Pulmonary Disease Using Artificial Neural NetworkEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract Arterial blood gas (ABG) has an important role in the clinical assessment of patients with acute exacerbations of chronic obstructive pulmonary disease (AECOPD). Because of ABG complications, an alternative method is beneficial. We have trained and tested five artificial neural networks (ANNs) with venous blood gas (VBG) values (pH, PCO2, HCO3, PO2, and O2 saturation) as inputs, to predict ABG values in patients with AECOPD. Venous and arterial blood samples were collected from 132 patients. Using the data of 106 patients, the ANNs were trained and validated by back-propagation algorithm. Subsequentl...
Source: Journal of Medical Systems - November 3, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Using Health Smart Cards to Check Drug Allergy History: The Perspective from Taiwan’s ExperiencesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract In Taiwan, national health insurance coverage began in 1994, and the Bureau of National Health Insurance has issued health smart cards since 2004. In addition to tracking medical reimbursements, these smart cards store healthcare information, including electronic prescriptions, medical procedure and vaccination records, drug allergy histories, and information about a patient’s willingness to be an organ donor. We conducted this study 4 years after the smart cards had been introduced in order to review how drug allergy history is recorded using this system. Our results reveal that the drug all...
Source: Journal of Medical Systems - October 27, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Medical Image on the Go!Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The idea for softcopy viewing of medical image outside the radiology reading room spread among the scientists in various fields for several years. An image could be read on workstation of all types, from desktop across movable to handheld. Benefits are numerous and continue to grow as physicians use them discovering new usage cases. Proposed solutions vary with PACS architecture invasion level, communication and storage image formats, and utilization. We employ JPEG2000 standard because of its high (lossy/lossless) compression ratio with minimal spatial distortion, retrieval-oriented storage, and str...
Source: Journal of Medical Systems - October 21, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Computer Based Synchronization Analysis on Sleep EEG in InsomniaEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In conclusion, the CF provides insights into functional connectivity of brain regions during sleep. Since the CF has a characteristic shape for sleep states, it can be proposed to identify the degree of EEG complexity depending on sleep disorders. Content Type Journal ArticleCategory Original PaperDOI 10.1007/s10916-009-9387-1Authors Serap Aydın, Ondokuz Mayıs University Engineering Faculty, Electrical and Electronics Eng. Department Samsun Turkey Journal Journal of Medical SystemsOnline ISSN 1573-689XPrint ISSN 0148-5598 (Source: Journal of Medical Systems)
Source: Journal of Medical Systems - October 21, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Classifying Epilepsy Diseases Using Artificial Neural Networks and Genetic AlgorithmEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This study shows that the artificial neural network increases the classification performance using genetic algorithm. Content Type Journal ArticleCategory Original PaperDOI 10.1007/s10916-009-9385-3Authors Sabri Koçer, Gazi University, Teknikokullar Department of Electronics and Computer Education, Faculty of Technical Education Ankara TurkeyM. Rahmi Canal, Gazi University, Teknikokullar Department of Electronics and Computer Education, Faculty of Technical Education Ankara Turkey Journal Journal of Medical SystemsOnline ISSN 1573-689XPrint ISSN 0148-5598 (Source: Journal of Medical Systems)
Source: Journal of Medical Systems - October 21, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Measuring Technical Efficiency in Primary Health Care: The Effect of Exogenous Variables on ResultsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The aim of this paper is to extend the existing literature about efficiency measurement in primary health care with the application of a recently developed method to deal with exogenous variables. In this context, these variables are represented by the main characteristics of the covered population. The use of this technique allows calculating more accurate efficiency scores that can reflect the performance of units more properly. Our results show that the inclusion of these variables in the evaluation has a great impact on both the values of efficiency scores and the rank of units. This analysis ha...
Source: Journal of Medical Systems - October 21, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

A Study on Hepatitis Disease Diagnosis Using Multilayer Neural Network with Levenberg Marquardt Training AlgorithmEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In this study, a hepatitis disease diagnosis study was realized using neural network structure. For this purpose, a multilayer neural network structure was used. Levenberg–Marquardt algorithm was used as training algorithm for the weights update of the neural network. The results of the study were compared with the results of the previous studies reported focusing on hepatitis disease diagnosis and using same UCI machine learning database. We obtained a classification accuracy of 91.87% via tenfold cross validation. Content Type Journal ArticleCategory Original PaperDOI 10.1007/s10916-009-9378-2Authors M. Serdar...
Source: Journal of Medical Systems - October 15, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Statistical Approach for Brain Cancer Classification Using a Region Growing ThresholdEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract In brain cancer, a biopsy as an invasive procedure is needed in order to differentiate between malignant and benign brain tumor. However, in some cases, it is difficult or harmful to perform such a procedure, to the brain. The aim of this study is to investigate a new method in maximizing the probability of brain cancer type detection without actual biopsy procedure. The proposed method combines both image and statistical analysis for tumor type detection. It employed image filtration and segmentation of the target region of interest with MRI to assure an accurate statistical interpretation of the r...
Source: Journal of Medical Systems - October 15, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Detecting Sleep Apnea by Heart Rate Variability Analysis: Assessing the Validity of Databases and AlgorithmsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract Obstructive sleep apnea (OSA) is a serious disorder caused by intermittent airway obstruction which may have dangerous impact on daily living activities. Heart rate variability (HRV) analysis could be used for diagnosing OSA, since this disease affects HRV during sleep. In order to validate different algorithms developed for detecting OSA employing HRV analysis, several public or proprietary data collections have been employed for different research groups. However, for validation purposes, it is obvious and evident the lack of a common standard database, worldwide recognized and accepted by the sci...
Source: Journal of Medical Systems - October 13, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Fuzzy Logic-Based Approach to Detecting a Passive RFID Tag in an Outpatient ClinicEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This study is motivated by the observations on the data collected by radio frequency identification (RFID) readers in a pilot study, which was used to investigate the feasibility of implementing an RFID-based monitoring system in an outpatient eye clinic. The raw RFID data collected from RFID readers contain noise and missing reads, which prevent us from determining the tag location. In this paper, fuzzy logic-based algorithms are proposed to interpret the raw RFID data to extract accurate information. The proposed algorithms determine the location of an RFID tag by evaluating its possibility of presence and absence. ...
Source: Journal of Medical Systems - October 10, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Analysis of EEG Signals Under Flash Stimulation for Migraine and Epileptic PatientsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In this study as a method of flash stimuli at frequencies of 2, 4 and 6 Hz were applied to different migraine and epileptic patients under pain-free phase with the EEG recorded from 18 scalp electrodes, referred to the linked earlobes. We used AR parametric method to analyze and characterize EEG signals in migraine and epileptic patients. The variations in the EEG power spectra shapes were examined in order to obtain medical information. These power spectra were then used to compare the applied method in terms of their frequency resolution and the effects in determination of migraine and epilepsy. Global performan...
Source: Journal of Medical Systems - October 6, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Evaluation of a Novel Integrated Sensor System for Synchronous Measurement of Cardiac Vibrations and Cardiac PotentialsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The measurement of human body vibrations as a result of heart beating, simultaneously with cardiac potentials have been demonstrated in past studies to bring additional value to diagnostic cardiology through the detection of irregularities in the mechanical movement of the heart. The equipment currently available to the medical community is either large and bulky or difficult to synchronize. To address this problem, a novel integrated sensor system has been developed to record cardiac vibration and cardiac potential simultaneously and synchronously from a single compact site on the chest. The develo...
Source: Journal of Medical Systems - October 3, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Significant Cancer Prevention Factor Extraction: An Association Rule Discovery ApproachEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract Cancer is increasing the total number of unexpected deaths around the world. Until now, cancer research could not significantly contribute to a proper solution for the cancer patient, and as a result, the high death rate is uncontrolled. The present research aim is to extract the significant prevention factors for particular types of cancer. To find out the prevention factors, we first constructed a prevention factor data set with an extensive literature review on bladder, breast, cervical, lung, prostate and skin cancer. We subsequently employed three association rule mining algorithms, Apriori, Pr...
Source: Journal of Medical Systems - October 3, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

An Application of Business Process Method to the Clinical Efficiency of HospitalEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The concept of Total Quality Management (TQM) has come to be applied in healthcare over the last few years. The process management category in the Baldrige Health Care Criteria for Performance Excellence model is designed to evaluate the quality of medical services. However, a systematic approach for implementation support is necessary to achieve excellence in the healthcare business process. The Architecture of Integrated Information Systems (ARIS) is a business process architecture developed by IDS Scheer AG and has been applied in a variety of industrial application. It starts with a business str...
Source: Journal of Medical Systems - September 30, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Singular Spectrum Analysis of Sleep EEG in InsomniaEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In conclusion, the SSA can detect the oscillatory variations on sleep EEG. Therefore, different sleep stages meet different singular spectra. In addition, different healthy conditions generate different singular spectra for each sleep stage. In summary, the SSA can be proposed for EEG discrimination to support the clinical findings for psycho-psychological disorders. Content Type Journal ArticleCategory Original PaperDOI 10.1007/s10916-009-9381-7Authors Serap Aydın, Ondokuz Mayıs University Engineering Faculty, Electrical and Electronics Eng. Department Samsun TurkeyHamdi Melih Saraoǧlu, Dumlupınar University E...
Source: Journal of Medical Systems - September 29, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Two RFID-based Solutions to Enhance Inpatient Medication SafetyEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract Owing to the low cost and convenience of identifying an object without physical contact, Radio Frequency Identification (RFID) systems provide innovative, promising and efficient applications in many domains. An RFID grouping protocol is a protocol that allows an off-line verifier to collect and verify the evidence of two or more tags simultaneously present. Recently, Huang and Ku (J. Med. Syst, 2009) proposed an efficient grouping protocol to enhance medication safety for inpatients based on low-cost tags. However, the Huang–Ku scheme is not secure; an attacker can easily make up fake grouping re...
Source: Journal of Medical Systems - September 24, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

A Scalable Healthcare Information System Based on a Service-oriented ArchitectureEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract Many existing healthcare information systems are composed of a number of heterogeneous systems and face the important issue of system scalability. This paper first describes the comprehensive healthcare information systems used in National Taiwan University Hospital (NTUH) and then presents a service-oriented architecture (SOA)-based healthcare information system (HIS) based on the service standard HL7. The proposed architecture focuses on system scalability, in terms of both hardware and software. Moreover, we describe how scalability is implemented in rightsizing, service groups, databases, and ha...
Source: Journal of Medical Systems - September 24, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Computerized Wrist Pulse Signal Diagnosis Using Modified Auto-Regressive ModelsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The wrist pulse signals can be used to analyze a person’s health status in that they reflect the pathologic changes of the person’s body condition. This paper aims to present a novel time series analysis approach to analyze wrist pulse signals. First, a data normalization procedure is proposed. This procedure selects a reference signal that is ‘closest’ to a newly obtained signal from an ensemble of signals recorded from the healthy persons. Second, an auto-regressive (AR) model is constructed from the selected reference signal. Then, the residual error, which is the difference between the a...
Source: Journal of Medical Systems - September 17, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

ITU e-Health Training Program for Pacific Island Community with the Support of the Sasakawa Peace FoundationEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract Tokai University School of Medicine provided a short-term e-Health training program for persons from Pacific Island Nations from 2006 until 2008 supported by funds from the Sasakawa Peace Foundation. There were lectures on software, hardware and topics relating to e-Health. We could assess the current medical situation in the Pacific Islands through this training course, and also obtain relevant material to analyze appropriate measures deemed necessary to improve the situation. Content Type Journal ArticleCategory Original PaperDOI 10.1007/s10916-009-9371-9Authors Yuichi Ishibashi, Tokai Univers...
Source: Journal of Medical Systems - September 16, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Strategic Enterprise Resource Planning in a Health-Care System Using a Multicriteria Decision-Making ModelEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract This paper deals with strategic enterprise resource planning (ERP) in a health-care system using a multicriteria decision-making (MCDM) model. The model is developed and analyzed on the basis of the data obtained from a leading patient-oriented provider of health-care services in Korea. Goal criteria and priorities are identified and established via the analytic hierarchy process (AHP). Goal programming (GP) is utilized to derive satisfying solutions for designing, evaluating, and implementing an ERP. The model results are evaluated and sensitivity analyses are conducted in an effort to enhance the ...
Source: Journal of Medical Systems - September 16, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Using Data Mining Techniques in Monitoring Diabetes Care. The Simpler the Better?Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract We aim at evaluating how data-mining statistical techniques can be applied on medical records and administrative data of diabetes and how they differ in terms of capabilities of predicting outcomes (e.g. death). Data on 3,892 outpatient patients with a diagnosis of type 2 diabetes from the San Giovanni Battista Hospital in Torino. Six statistical classifiers were applied: Logistic regression (LR), Generalized Additive Model (GAM), Projection pursuit Regression (PPR), Linear Discriminant Analysis (LDA), Quadratic Discriminant Analysis (QDA), Artificial Neural Networks (ANN). All models selected the s...
Source: Journal of Medical Systems - September 16, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Monitoring of Medication Intake Using a Camera SystemEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract This paper presents a computer vision system for monitoring medication intake in the context of home care services. We use a method based on color and shape to detect the body parts and the medication bottles. Color is used for skin detection, and the shape is used to distinguish the face from the hands and to differentiate bottles of medicine. To track these objects, we use a method based on color histograms, Hu moments, and edges. For the recognition of medication intake, we use a Petri network and event recognition. Our method has an accuracy of more than 75% and allows the detection of the medic...
Source: Journal of Medical Systems - September 16, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Understanding Performance and Behavior of Tightly Coupled Outpatient Systems Using RFID: Initial ExperienceEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract Understanding how clinical systems actually behave in an era of limited medical resources is critical. The purpose of this study was to determine if a radiofrequency-identification-based indoor positioning system (IPS) could objectively and unobtrusively capture outpatient clinic behavior. Primary outcomes were flowtime, wait time and patient/clinician face time. Two contrasting clinics were evaluated: a primary care clinic (PC) with templated scheduling and an urgent care clinic (UC) with unconstrained visit time and first-in, first-out scheduling. All staff wore transponders throughout the study p...
Source: Journal of Medical Systems - September 16, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Adopting Confidentiality Principles for Electronic Health Records in Iran: A Delphi StudyEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract A growing capacity of information technologies in collection, storage and transmission of information has added a great deal of concerns since electronic records can be accessed by numerous consumers at various locations. Thus, the basic question is “what kind of Model is suitable for guaranteeing the confidentiality of EHR information in Iran?” The present study is a descriptive investigation made in Iran in 2007. Based on the collected data the preliminary model was designed and it was assessed through questionnaires and Delphi Technique and finally the noted model was designed and proposed. T...
Source: Journal of Medical Systems - September 16, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Improving Financial Performance by Modeling and Analysis of Radiology Procedure Scheduling at a Large Community HospitalEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract Radiology tests, such as MRI, CT-scan, X-ray and ultrasound, are cost intensive and insurance pre-approvals are necessary to get reimbursement. In some cases, tests may be denied for payments by insurance companies due to lack of pre-approvals, inaccurate or missing necessary information. This can lead to substantial revenue losses for the hospital. In this paper, we present a simulation study of a centralized scheduling process for outpatient radiology tests at a large community hospital (Central Baptist Hospital in Lexington, Kentucky). Based on analysis of the central scheduling process, a simula...
Source: Journal of Medical Systems - September 3, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Japanese Telemedical Concept of Ambulatory ApplicationEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract Transmission of in-ambulance data without inconveniencing or undue effort by the rescue crew—in other words, automation of in-ambulance activities (measurement/analysis, activity recording, message transmission)—is essential in implementing uniform medical control standards across the nation. However, the 3G mobile phone has propagation problems at urban area and severe congestions after major disaster to support mobile telemedicine. So we are expecting the Quasi-zenith satellite with nationwide coverage. In near future, we are expecting the data transmission of image of pharygoscopy, motion pic...
Source: Journal of Medical Systems - September 3, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Tuberculosis Disease Diagnosis Using Artificial Neural Network Trained with Genetic AlgorithmEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This article presents a study on tuberculosis diagnosis, carried out with the help of multilayer neural networks (MLNNs). For this purpose, an MLNN with two hidden layers and a genetic algorithm for training algorithm has been used. The tuberculosis dataset was taken from a state hospital’s database, based on patient’s epicrisis reports. Content Type Journal ArticleCategory Original PaperDOI 10.1007/s10916-009-9369-3Authors Erhan Elveren, Sakarya University Department of Computer Engineering 54187 Adapazari TurkeyNejat Yumuşak, Sakarya University Department of Computer Engineering 54187 Adapazari Turkey ...
Source: Journal of Medical Systems - August 28, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

ASIC Design of a Digital Fuzzy System on Chip for Medical Diagnostic ApplicationsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The paper presents the ASIC design of a digital fuzzy logic circuit for medical diagnostic applications. The system on chip under consideration uses fuzzifier, memory and defuzzifier for fuzzifying the patient data, storing the membership function values and defuzzifying the membership function values to get the output decision. The proposed circuit uses triangular trapezoidal membership functions for fuzzification patients’ data. For minimizing the transistor count, the proposed circuit uses 3T XOR gates and 8T adders for its design. The entire work has been carried out using TSMC 0.35 µm C...
Source: Journal of Medical Systems - August 27, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Distributed Agent Based Interoperable Virtual EMR System for Healthcare System IntegrationEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract One of the major problems in health care system integration is the formidable cost of mediating between myriad vendors and policy makers for updating existing heterogeneous systems to support a great variety of standards or interfaces. To provide cost-effective healthcare system integration solution, this paper presents a Graphical User Interface state model (GUISM) for automatically exchanging information with existing healthcare software through their GUIs with no modifications needed to them. This can save the huge cost of upgrading, testing and redeploying the existing systems. By using the GUIS...
Source: Journal of Medical Systems - August 27, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

A New Accounting System for Financial Balance Based on Personnel Cost After the Introduction of a DPC/DRG SystemEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract A hospital director must estimate the revenues and expenses not only in a hospital but also in each clinical division to determine the proper management strategy. A new prospective payment system based on the Diagnosis Procedure Combination (DPC/PPS) introduced in 2003 has made the attribution of revenues and expenses for each clinical department very complicated because of the intricate involvement between the overall or blanket component and a fee-for service (FFS). Few reports have so far presented a programmatic method for the calculation of medical costs and financial balance. A simple method h...
Source: Journal of Medical Systems - August 27, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

An Application of Artificial Immune Recognition System for Prediction of Diabetes Following Gestational DiabetesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This study is conducted with the use of the machine learning—Artificial Immune Recognition System (AIRS)—to assist doctors in predicting pregnant women who have premonition of type 2 diabetes. AIRS is proposed by Andrew Watkins in 2001 and it makes use of the metaphor of the vertebrate immune system to recognize antigens, select clone, and memorize cells. Additionally, AIRS includes a mechanism, limited resource, to restrain the number of memory cells from increasing uncontrollably. It has also showed positive results on problems in which it was applied. The objective of this study is to investigate the feasibilit...
Source: Journal of Medical Systems - August 24, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

A Unified Architecture for Biomedical Search Engines Based on Semantic Web TechnologiesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract There is a huge growth in the volume of published biomedical research in recent years. Many medical search engines are designed and developed to address the over growing information needs of biomedical experts and curators. Significant progress has been made in utilizing the knowledge embedded in medical ontologies and controlled vocabularies to assist these engines. However, the lack of common architecture for utilized ontologies and overall retrieval process, hampers evaluating different search engines and interoperability between them under unified conditions. In this paper, a unified architectur...
Source: Journal of Medical Systems - August 24, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Toward A Human-Centered Hyperlipidemia Management System: The Interaction between Internal and External Information on Relational Data SearchEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In this study, representation dimensions, data scales, and search task types are the main factors in determining search efficiency and effectiveness. Specifically, the more external representations provided on the interface the better search task performance of users. The results also suggest the ideal search performance occurs when the question type and its corresponding data scale representation match. The implications of the study lie in contributing to the effective design of search interface for relational data, especially laboratory results, which could be more effectively designed in electronic medical records. ...
Source: Journal of Medical Systems - August 19, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Novel Design of Low Noise Preamplifier for Medical Ultrasound TransducersEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract A novel design of low noise amplifier for medical ultrasound transducers is described in this paper. Unlike conventional low noise preamplifiers, this design proposes a new circuit configuration which has electronically adjustable matching resistance that allows the preamplifier to be compatible with a variety of medical ultrasound transducers. The design employs current feedback operational amplifier to enhance the gain-bandwidth independence and improve the design slew rate. Simulation results show that the proposed design has very low output noise voltage spectral density and the level of this no...
Source: Journal of Medical Systems - August 19, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Cost-effectiveness of Clinical Pathway in Coronary Artery Bypass SurgeryEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This study was aimed to investigate the cost and effectiveness of the clinical pathway on CAB surgery in a medical center. With a retrospective dataset in 2003–2007, 212 CAB surgery patients were included. Data of the costs and postoperative complication occurrence and length of stays were the focus and patient demographics, surgical risk indicator EuroSCORE, surgical conditions were collected. It revealed that there was differentiation across specified cost items in beating heart CAB surgery patients, but not for heart arrest CAB surgery patients with and without clinical pathways enrolled. In addition, there was n...
Source: Journal of Medical Systems - August 12, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Diagnosis of Dental Deformities in Cephalometry Images Using Support Vector MachineEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract This paper proposes an automated target recognition algorithm using Support Vector Machine (SVM) to extract landmark points for craniofacial features in cephalometry radiograph. The features are extracted by subjecting the radiograph to the Projected Principle Edge Distribution (PPED) algorithm. Edge flags are accumulated in every four columns and spatial distribution of edge flags are represented by a histogram. The resultants are the front end of support vector machine. Vectors, which posses land marks, are separated from all other vectors. The centroid points, automatically determined from PPED v...
Source: Journal of Medical Systems - August 11, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Heart Monitoring Garments Using Textile Electrodes for Healthcare ApplicationsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract We measured the electrical activity signals of the heart through vital signs monitoring garments that have textile electrodes in conductive yarns while the subject is in stable and dynamic motion conditions. To measure the electrical activity signals of the heart during daily activities, four types of monitoring garment were proposed. Two experiments were carried out as follows: the first experiment sought to discover which garment led to the least displacement of the textile electrode from its originally intended location on the wearer’s body. In the second, we measured and compared the electrica...
Source: Journal of Medical Systems - August 11, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Fuzzy Clustered Probabilistic and Multi Layered Feed Forward Neural Networks for Electrocardiogram Arrhythmia ClassificationEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The role of electrocardiogram (ECG) as a noninvasive technique for detecting and diagnosing cardiac problems cannot be overemphasized. This paper introduces a fuzzy C-mean (FCM) clustered probabilistic neural network (PNN) for the discrimination of eight types of ECG beats. The performance has been compared with FCM clustered multi layered feed forward network (MLFFN) trained with back propagation algorithm. Important parameters are extracted from each ECG beat and feature reduction has been carried out using FCM clustering. The cluster centers form the input of neural network classifiers. The exten...
Source: Journal of Medical Systems - August 11, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

The Use of Skin Surface Electropotentials for Breast Cancer Detection—Preliminary Clinical Trial Results Obtained Using the Biofield Diagnostic SystemEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The purpose of this study is to evaluate the efficiency of the Biofield Diagnostic System (BDS) as an adjunct to established diagnostic techniques such as mammography and ultrasound in differentiating benign and malignant breast lesions. The clinical trial was conducted at the Tan Tock Seng hospital, Singapore. 103 women scheduled for mammography and/or ultrasound tests participated in the study. The BDS test recorded a sensitivity of 100%, specificity of 97.6%, and an accuracy of 98.1%. The area under the ROC curve was 0.988 which was slightly lower than that of ultrasound (0.994) and slightly high...
Source: Journal of Medical Systems - August 9, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Assessing Differences Between Physicians’ Realized and Anticipated Gains from Electronic Health Record AdoptionEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract Return on investment (ROI) concerns related to Electronic Health Records (EHRs) are a major barrier to the technology’s adoption. Physicians generally rely upon early adopters to vet new technologies prior to putting them into widespread use. Therefore, early adopters’ experiences with EHRs play a major role in determining future adoption patterns. The paper’s purposes are: (1) to map the EHR value streams that define the ROI calculation; and (2) to compare Current Users’ and Intended Adopters’ perceived value streams to identify similarities, differences and governing constructs. Primary ...
Source: Journal of Medical Systems - August 9, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Design of the Computerized 3D Endoscopic Imaging System for Delicate Endoscopic SurgeryEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract This paper describes a 3D endoscopic video system designed to improve visualization and enhance the ability of the surgeon to perform delicate endoscopic surgery. In a comparison of the polarized and conventional electric shutter-type stereo imaging systems, the former was found to be superior in terms of both accuracy and speed for suturing and for the loop pass test. Among the groups performing loop passing and suturing, there was no significant difference in the task performance between the 2D and 3D modes, however, suturing was performed 15% (p < 0.05) faster in 3D mode by both groups. Th...
Source: Journal of Medical Systems - August 4, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Evaluation of Flow–Volume Spirometric Test Using Neural Network Based Prediction and Principal Component AnalysisEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract In this work, an attempt has been made to enhance the diagnostic relevance of spirometric pulmonary function test using neural networks and Principal Component Analysis (PCA). For this study, flow–volume curves (N = 175) using spirometers were generated under standard recording protocol. A method based on neural network is used to predict the most significant parameter, FEV1. Further, PCA is used to analyze the interdependency of the parameters in the measured and predicted datasets. Results show that the back propagation neural network is able to predict FEV1 both in normal and abnormal cases....
Source: Journal of Medical Systems - August 4, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Efficiency Measurement of Cardiac Care Units of Isfahan Hospitals in IranEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The purpose of this study is to evaluate the performance of the Cardiac Care Units (CCU) of hospitals in Isfahan, Iran. The multi-criteria comparison between the wards of different hospitals is not only useful for the patients but also important for the hospitals management to improve their performance and for the medical policy makers to plan strategic decisions. In this paper, it is intended to consider the aspects of efficiency beyond the traditional evaluation of check list. There are some measures which are used in the existing health audit system and several quantified ratios. Among them the m...
Source: Journal of Medical Systems - August 4, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Parallel Algorithm to Analyze the Brain Signals: Application on Epileptic SpikesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract In the current work, we have proposed a parallel algorithm for the recognition of Epileptic Spikes (ES) in EEG. The automated systems are used in biomedical field to help the doctors and pathologist by producing the result of an inspection in real time. Generally, the biomedical signal data to be processed are very large in size. A uniprocessor computer is having its own limitation regarding its speed. So the fastest available computer with latest configuration also may not produce results in real time for the immense computation. Parallel computing can be proved as a useful tool for processing the ...
Source: Journal of Medical Systems - July 31, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Region of Interest Tracking in Real-Time Myocardial Contrast EchocardiographyEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The real-time myocardial contrast echocardiography (RT MCE) is a new echocardiography technology, which allows clinicians to noninvasively evaluate the perfusion of myocardial capillary of patients, using the quantitative analysis of RT MCE. But the accurate analysis requires tracking the position of region of interest (ROI) within the myocardial area, so as to compensate for the translation or rotation offsets, which are due to such uncontrollable factors as heart motion. We used diamond search method and Brox’s coarse-to-fine warping optical flow technique for this ROI tracking problem. We valid...
Source: Journal of Medical Systems - July 28, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Single Image Signal-to-Noise Ratio Estimation for Magnetic Resonance ImagesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract A novel technique to quantify the signal-to-noise ratio (SNR) of magnetic resonance images is developed. The image SNR is quantified by estimating the amplitude of the signal spectrum using the autocorrelation function of just one single magnetic resonance image. To test the performance of the quantification, SNR measurement data are fitted to theoretically expected curves. It is shown that the technique can be implemented in a highly efficient way for the magnetic resonance imaging system. Content Type Journal ArticleCategory Original PaperDOI 10.1007/s10916-009-9339-9Authors K. S. Sim, Multime...
Source: Journal of Medical Systems - July 25, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

Apply Influence Diagrams for Utility Analysis of Paying the Weight-Reducing Expenses: A Case Study in TaiwanEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract To effectively control the growth of medical expenditure, Bureau of National Health Insurance (NHI) of Taiwan has taken many measures, including the Reasonable Number of Outpatient Services, Ceiling Price, Global Budgets, Strategic Analysis and the Excellence Plan; however, these measures can only scratch the surface. Due to the change of life style and the deteriorating condition of over-nutrition and obesity, people now have a higher risk of diabetes, hypertension, hyperlipidemia, cardiovascular disease, gallbladder disease, cancer, gout, arthritis, and so on, which leads to higher medical expendi...
Source: Journal of Medical Systems - July 25, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals

A Novel Method for Diagnosing Cirrhosis in Patients with Chronic Hepatitis B: Artificial Neural Network ApproachEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract We designed an artificial neural network (ANN) to diagnose cirrhosis in patients with chronic HBV infection. Routine laboratory data (PT, INR, platelet count, direct bilirubin, AST/ALT, AST/PLT) and age were collected from 144 patients. Cirrhosis in these patients was diagnosed by liver biopsy. The ANN’s ability was assessed using receiver-operating characteristic (ROC) analysis and the results were compared with a logistic regression model. Our results indicate that the neural network analysis is likely to provide a non-invasive, accurate test for diagnosing cirrhosis in chronic HBV-infected pati...
Source: Journal of Medical Systems - July 23, 2009 Category: Information Technology Tags: Journal of Medical Systems Source Type: journals