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Total 66108 results found since Jan 2013.

Wandering spleen associated with omphalocele in a neonate: An unusual case with non-operative management
Publication date: Available online 16 June 2017 Source:Journal of Pediatric Surgery Case Reports Author(s): Daisuke Masui, Suguru Fukahori, Kimio Asagiri, Shinji Ishii, Nobuyuki Saikusa, Naoki Hashizume, Motomu Yoshida, Naruki Higasidate, Saki Sakamoto, Shiori Tsuruhisa, Yoshiaki Tanaka, Minoru Yagi Wandering spleen with a history of omphalocele is extremely rare. We encountered a male baby with wandering spleen associated with omphalocele. This case of wandering spleen in a neonate was diagnosed by ultrasound and computed tomography scans after surgery for omphalocele. Our case was able to be managed non-operatively due ...
Source: Journal of Pediatric Surgery Case Reports - June 16, 2017 Category: Surgery Source Type: research

Bone mineral density is increased in the cadmium-induced omphalocele chick model by using three-dimensional micro-computed tomography
ConclusionsIncreased BMD may be associated with lordosis of the vertebral column in the Cd-induced omphalocele chick model, stimulating osteogenesis by activating the canonical Wnt signalling pathway.
Source: Pediatric Surgery International - June 14, 2019 Category: Surgery Source Type: research

Surgery Requiring Detailed Preoperative Simulation and Scar De-epithelialization to Repair Severe Postoperative Scarring from Gastroschisis.
We present the case of a patient with severe postoperative scarring from surgical treatment for gastroschisis, with the intestine located immediately under the dermal scar. Although many patients are unsatisfied with the results of scar repair treatment, few reports exist regarding severe or difficult cases involving the surgical repair of postoperative scar contracture. We achieved an excellent result via simulation involving graph paper drawings that were generated using computed tomography images as a reference, followed by dermal scar deepithelialization. The strategy described here may be useful for other cases of sev...
Source: Archives of Plastic Surgery - July 23, 2017 Category: Cosmetic Surgery Tags: Arch Plast Surg Source Type: research

The management of an ectopic ovary in an adolescent patient with gastroschisis
Gastroschisis is an abdominal wall defect through which the bowel herniates into the amniotic cavity. Surgical correction of gastroschisis is performed during infancy. Gynecologic concerns have not been described in this population as either an associated anomaly or complication of surgical repair.A 15 year old nulliparous female presented with abdominal pain with a history of gastrochisis requiring four surgeries in infancy. CT scan showed an ovary located in the RUQ which was concerning for torsion.
Source: Journal of Pediatric and Adolescent Gynecology - May 3, 2018 Category: OBGYN Authors: Rachel Edwards, Jillian McCagg, Peter Chirico, Jennie Yoost Source Type: research

Herniated liver mimicking an intracardiac mass in a newborn with omphalocele
A one-month-old newborn with a giant omphalocele underwent routine echocardiography to screen for cardiac anomalies. Slightly reduced left ventricular function was noted for which repeat echocardiography was advised. The repeated echocardiography one month later revealed an unexpected large homogeneous mass (arrows in Fig. 1) in the inferior vena cava extending into the right atrium, without flow obstruction, as well as a small atrial septal defect. An intracardiac thrombus was deemed the most likely cause, possibly due to earlier central venous line placement, and anticoagulation therapy was started.
Source: Journal of Cardiovascular Computed Tomography - September 25, 2016 Category: Radiology Authors: R. Budde, Nanko de Graaf, Rene M. Wijnen, Ingrid M. van Beynum Tags: Case report Source Type: research

How visual search relates to visual diagnostic performance: a narrative systematic review of eye-tracking research in radiology
Abstract Eye tracking research has been conducted for decades to gain understanding of visual diagnosis such as in radiology. For educational purposes, it is important to identify visual search patterns that are related to high perceptual performance and to identify effective teaching strategies. This review of eye-tracking literature in the radiology domain aims to identify visual search patterns associated with high perceptual performance. Databases PubMed, EMBASE, ERIC, PsycINFO, Scopus and Web of Science were searched using ‘visual perception’ OR ‘eye tracking’ AND ‘radiology’ and synonyms. Two aut...
Source: Advances in Health Sciences Education - July 18, 2016 Category: Universities & Medical Training Source Type: research

The Effect of Teaching Search Strategies on Perceptual Performance
Conclusions Teaching a drilling strategy is preferable to teaching a scanning strategy for finding lung nodules.
Source: Academic Radiology - February 24, 2017 Category: Radiology Source Type: research

Coordinate-based fast lightweight path search algorithm for electromagnetic navigation bronchoscopy
AbstractElectromagnetic navigation bronchoscopy (ENB) uses electromagnetic positioning technology to guide the bronchoscope to accurately and quickly reach the lesion along the planned path. However, enormous data in high-resolution lung computed tomography (CT) and the complex structure of multilevel branching bronchial tree make fast path search challenging for path planning. We propose a coordinate-based fast lightweight path search (CPS) algorithm for ENB. First, the centerline is extracted from the bronchial tree by applying topological thinning. Then, Euclidean-distance-based coordinate search is applied. The centerl...
Source: Medical and Biological Engineering and Computing - December 31, 2022 Category: Biomedical Engineering Source Type: research

The Radiologist ’s Gaze: Mapping Three-Dimensional Visual Search in Computed Tomography of the Abdomen and Pelvis
This study describes visual search patterns of radiologists in inte rpretation of CTs of the abdomen and pelvis to better approach future endeavors in determining the effects of manipulations such as fatigue, interruptions, and computer-aided detection.
Source: Journal of Digital Imaging - October 5, 2018 Category: Radiology Source Type: research

Satisfaction of Search from Detection of Pulmonary Nodules in Computed Tomography of the Chest
Conclusion: The SOS effect in CT examination of the chest is similar to that found in contrast examination of the abdomen, involving induced visual neglect.
Source: Academic Radiology - October 29, 2012 Category: Radiology Authors: Kevin S. Berbaum, Kevin M. Schartz, Robert T. Caldwell, Mark T. Madsen, Brad H. Thompson, Brian F. Mullan, Andrew N. Ellingson, Edmund A. Franken Tags: Original Investigations Source Type: research

Optimal marker placement in hadrontherapy: Intelligent optimization strategies with augmented Lagrangian pattern search
Conclusions The SAPS algorithm is a valuable strategy for fiducial configuration optimization in IR optical tracking applied for patient set-up error detection and correction in radiation therapy, showing that taking into account prior knowledge is valuable in this optimization process. Further work will be focused on the computational optimization of the SAPS algorithm toward fast point-of-care applications. Graphical abstract
Source: Journal of Biomedical Informatics - November 3, 2014 Category: Information Technology Source Type: research

Lung Cancer Detection using Probabilistic Neural Network with modified Crow-Search Algorithm.
CONCLUSION: The<br />strategy for the selection of appropriate extracted features is employed to improve the efficiency of classification and<br />the work shows that the PNN with CCSA based feature selection gives an improved classification than without using<br />CCSA for feature selection. PMID: 31350980 [PubMed - in process]
Source: Asian Pacific Journal of Cancer Prevention - July 28, 2019 Category: Cancer & Oncology Tags: Asian Pac J Cancer Prev Source Type: research

Derivation and validation of text search algorithms for renal and adrenal lesion identification in radiology text reports.
CONCLUSIONS: Textual radiology reports can be analyzed using common statistical software to accurately determine the probability that important abnormalities of the kidneys or adrenal glands exist. These methods can be used for case identification or epidemiological studies. PMID: 31977309 [PubMed - as supplied by publisher]
Source: Canadian Urological Association Journal - January 19, 2020 Category: Urology & Nephrology Authors: Lavallée LT, Knee C, Ross J, Lau JL, Mookerji N, van Walraven C Tags: Can Urol Assoc J Source Type: research

M3NAS: Multi-Scale and Multi-Level Memory-Efficient Neural Architecture Search for Low-Dose CT Denoising
Lowering the radiation dose in computed tomography (CT) can greatly reduce the potential risk to public health. However, the reconstructed images from dose-reduced CT or low-dose CT (LDCT) suffer from severe noise which compromises the subsequent diagnosis and analysis. Recently, convolutional neural networks have achieved promising results in removing noise from LDCT images. The network architectures that are used are either handcrafted or built on top of conventional networks such as ResNet and U-Net. Recent advances in neural network architecture search (NAS) have shown that the network architecture has a dramatic effec...
Source: IEE Transactions on Medical Imaging - March 1, 2023 Category: Biomedical Engineering Source Type: research

MLF-IOSC: Multi-Level Fusion Network With Independent Operation Search Cell for Low-Dose CT Denoising
Computed tomography (CT) is widely used in clinical medicine, and low-dose CT (LDCT) has become popular to reduce potential patient harm during CT acquisition. However, LDCT aggravates the problem of noise and artifacts in CT images, increasing diagnosis difficulty. Through deep learning, denoising CT images by artificial neural network has aroused great interest for medical imaging and has been hugely successful. We propose a framework to achieve excellent LDCT noise reduction using independent operation search cells, inspired by neural architecture search, and introduce the Laplacian to further improve image quality. Emp...
Source: IEE Transactions on Medical Imaging - April 1, 2023 Category: Biomedical Engineering Source Type: research