3D image analysis of abdominal aortic aneurysm

Marko Subasic; Sven Loncaric; Erich Sorantin

doi:10.1117/12.467138

9 May 2002 3D image analysis of abdominal aortic aneurysm

Marko Subasic, Sven Loncaric, Erich Sorantin

Proceedings Volume 4684, Medical Imaging 2002: Image Processing; (2002) https://doi.org/10.1117/12.467138
Event: Medical Imaging 2002, 2002, San Diego, California, United States

Abstract

This paper presents a method for 3-D segmentation of abdominal aortic aneurysm from computed tomography angiography images. The proposed method is automatic and requires minimal user assistance. Segmentation is performed in two steps. First inner and then outer aortic border is segmented. Those two steps are different due to different image conditions on two aortic borders. Outputs of these two segmentations give a complete 3-D model of abdominal aorta. Such a 3-D model is used in measurements of aneurysm area. The deformable model is implemented using the level-set algorithm due to its ability to describe complex shapes in natural manner which frequently occur in pathology. In segmentation of outer aortic boundary we introduced some knowledge based preprocessing to enhance and reconstruct low contrast aortic boundary. The method has been implemented in IDL and C languages. Experiments have been performed using real patient CTA images and have shown good results.

Citation Download Citation

Marko Subasic, Sven Loncaric, and Erich Sorantin "3D image analysis of abdominal aortic aneurysm", Proc. SPIE 4684, Medical Imaging 2002: Image Processing, (9 May 2002); https://doi.org/10.1117/12.467138

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