Results 41 to 50 of about 17,546 (162)

Mesenteric Vasculature-Guided Small Bowel Segmentation on 3-D CT [PDF]

IEEE Transactions on Medical Imaging, 2013
Due to its importance and possible applications in visualization, tumor detection and preoperative planning, automatic small bowel segmentation is essential for computer-aided diagnosis of small bowel pathology. However, segmenting the small bowel directly on computed tomography (CT) scans is very difficult because of the low image contrast on CT scans
Weidong, Zhang, Jiamin, Liu, Jianhua, Yao, Adeline, Louie, Tan B, Nguyen, Stephen, Wank, Wieslaw L, Nowinski, Ronald M, Summers   +7 more
openaire   +2 more sources

Chaining a U-Net With a Residual U-Net for Retinal Blood Vessels Segmentation

IEEE Access, 2020
Retina images are the only non-invasive way of accessing the cardiovascular system, offering us a means of observing patterns such as microaneurysms, hemorrhages and the vasculature structure which can be used to diagnose a variety of diseases.
Gendry Alfonso Francia, Carlos Pedraza, Marco Aceves, Saul Tovar-Arriaga   +3 more
doaj   +1 more source

Computational Methods for Liver Vessel Segmentation in Medical Imaging: A Review

Sensors, 2021
The segmentation of liver blood vessels is of major importance as it is essential for formulating diagnoses, planning and delivering treatments, as well as evaluating the results of clinical procedures.
Marcin Ciecholewski, Michał Kassjański
doaj   +1 more source

Physics-informed deep generative learning for quantitative assessment of the retina

Nature Communications
Disruption of retinal vasculature is linked to various diseases, including diabetic retinopathy and macular degeneration, leading to vision loss. We present here a novel algorithmic approach that generates highly realistic digital models of human retinal
Emmeline E. Brown, Andrew A. Guy, Natalie A. Holroyd, Paul W. Sweeney, Lucie Gourmet, Hannah Coleman, Claire Walsh, Athina E. Markaki, Rebecca Shipley, Ranjan Rajendram, Simon Walker-Samuel   +10 more
doaj   +1 more source

Microvascular imaging of the unstained human superior colliculus using synchrotron-radiation phase-contrast microtomography

Scientific Reports, 2022
Characterizing the microvasculature of the human brain is critical to advance understanding of brain vascular function. Most methods rely on tissue staining and microscopy in two-dimensions, which pose several challenges to visualize the three ...
Ju Young Lee, Andreas F. Mack, Thomas Shiozawa, Renata Longo, Giuliana Tromba, Klaus Scheffler, Gisela E. Hagberg   +6 more
doaj   +1 more source

A Survey on Diabetic Retinopathy Lesion Detection and Segmentation

Applied Sciences, 2023
Diabetes is a global problem which impacts people of all ages. Diabetic retinopathy (DR) is a main ailment of the eyes resulting from diabetes which can result in loss of eyesight if not detected and treated on time.
Anila Sebastian, Omar Elharrouss, Somaya Al-Maadeed, Noor Almaadeed   +3 more
doaj   +1 more source

A novel gradient echo data based vein segmentation algorithm and its application for the detection of regional cerebral differences in venous susceptibility

NeuroImage, 2022
Accurate segmentation of cerebral venous vasculature from gradient echo data is of central importance in several areas of neuroimaging such as for the susceptibility-based assessment of brain oxygenation or planning of electrode placement in deep brain ...
Sina Straub, Janis Stiegeler, Edris El-Sanosy, Martin Bendszus, Mark E. Ladd, Till M. Schneider   +5 more
doaj   +1 more source

Semi-automated protocol to quantify and characterize fluorescent three-dimensional vascular images.

PLoS ONE
The microvasculature facilitates gas exchange, provides nutrients to cells, and regulates blood flow in response to stimuli. Vascular abnormalities are an indicator of pathology for various conditions, such as compromised vessel integrity in small vessel
Danny F Xie, Christian Crouzet, Krystal LoPresti, Yuke Wang, Christopher Robinson, William Jones, Fjolla Muqolli, Chuo Fang, David H Cribbs, Mark Fisher, Bernard Choi   +10 more
doaj   +1 more source

Hemodynamics of anterior communicating artery aneurysms using combined imaging of the anterior circulation

Current Directions in Biomedical Engineering, 2021
Intracranial aneurysms at the anterior communicating artery (AcomA) are associated with a higher rupture risk and a more challenging therapy since they are supplied with blood from both sides of the anterior vasculature.
Saalfeld Sylvia, Behme Daniel, Almizel Mahmoud, Berg Philipp   +3 more
doaj   +1 more source

Retinal Vessels Segmentation Techniques and Algorithms: A Survey

Applied Sciences, 2018
Retinal vessels identification and localization aim to separate the different retinal vasculature structure tissues, either wide or narrow ones, from the fundus image background and other retinal anatomical structures such as optic disc, macula, and ...
Jasem Almotiri, Khaled Elleithy, Abdelrahman Elleithy   +2 more
doaj   +1 more source