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Computer Aided Detection and Measurement of Abdominal Aortic Aneurysm Using Computed Tomography Digital Images

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5 Author(s)
Dehmeshki, J. ; Fac. of Comput. & Inf. Syst. & Math., Med. Imaging Res. Group, Kingston Univ., Kingston upon Thames ; Amin, H. ; Ebadian-Dehkordi, M. ; Jouannic, A.
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Computer-aided detection (CAD) systems, which automatically detect and indicate location of potential abnormalities in scan digital images, have the capacity to increase the accuracy of the radiologistspsila interpretations and finding. This paper presents an efficient new CAD for automatic and accurate detection and quantification of abdominal aortic aneurysm (AAA). The system first detects and extracts the lumen and then identifies the location of the abdominal aortic from the total lumen. The extracted abdominal aortic lumen is then used as an initial surface to segment the abdominal aorta which might contain aneurysm. The geometrical and morphological features of both lumen and aorta are examined for the presence of aneurysm based on predefined criteria set by incorporating prior understanding of the normal expected variation of aorta. The experimental result of the proposed system on 60 CTA datasets indicated a 98% success in detection (CAD) and a 95% in segmentation results (CAM).

Published in:

Digital Society, 2009. ICDS '09. Third International Conference on

Date of Conference:

1-7 Feb. 2009

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