Comput. Biol. Med. - Three-dimensional thrombus segmentation in abdominal aortic aneurysms using graph search based on a triangular mesh.

Tópicos

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Resumo

An abdominal aortic aneurysm (AAA) is the area of a localized widening of the abdominal aorta, with a frequent presence of thrombus. Segmentation and quantitative analysis of the thrombus in AAA are of paramount importance for diagnosis, risk assessment and determination of treatment options. The proposed thrombus segmentation method utilizes the power and flexibility of the 3-D graph search approach based on a triangular mesh. The method was tested in 9 3-D MDCT angiography data sets (9 patients with AAA, 1300 image slices), and the mean unsigned errors for the luminal and thrombotic surfaces were 0.99+/-0.18 mm and 1.90+/-0.72 mm. To achieve these results, 9.9+/-10.3 control points needed to be interactively entered on 2.1+/-2.2 image slices per 3-D CTA data set.

Resumo Limpo

abdomin aortic aneurysm aaa area local widen abdomin aorta frequent presenc thrombus segment quantit analysi thrombus aaa paramount import diagnosi risk assess determin treatment option propos thrombus segment method util power flexibl d graph search approach base triangular mesh method test d mdct angiographi data set patient aaa imag slice mean unsign error lumin thrombot surfac mm mm achiev result control point need interact enter imag slice per d cta data set

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