Three-dimensional shape reconstruction of abdominal aortic aneurysm
Three-dimensional shape reconstruction of abdominal aortic aneurysm
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DOI：
10.1016/j.cad.2007.10.006
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发表时间：
2009-08-01
影响因子：
4.3
通讯作者：
Shimada, Kenji
中科院分区：
文献类型：
--
作者：
Shim, Mun-Bo;Gunay, Murat;Shimada, Kenji
This paper presents an effective computational technique for reconstructing a three-dimensional shape of an abdominal aortic aneurysm (AAA), from a limited number of computed tomography (CT) images. The three-dimensional template geometry of a healthy abdominal aorta is used as a priori knowledge, and the template geometry is deformed by extended free-form deformation (EFFD), to generate a patient-specific AAA geometry. A two-step optimization scheme is devised to find an optimal set of EFFD parameters that match the cross-section of a deformed template with an AAA contour shown in a CT image. The geometric continuity of a deformed model is maintained by raising the order of the polynomial function used in EFFD. Experimental results show that the proposed method creates the three-dimensional shape of AAA suitable for structural finite element analysis and computational fluid dynamics for medical diagnosis. (C) 2007 Elsevier Ltd. All rights reserved.
