Fully automatic detection and visualization of patient specific coronary supply regions

Dominik Fritz; Alexander Wiedemann; Ruediger Dillmann; Michael Scheuering

doi:10.1117/12.769778

12 March 2008 Fully automatic detection and visualization of patient specific coronary supply regions

Dominik Fritz, Alexander Wiedemann, Ruediger Dillmann, Michael Scheuering

Proceedings Volume 6916, Medical Imaging 2008: Physiology, Function, and Structure from Medical Images; 691602 (2008) https://doi.org/10.1117/12.769778
Event: Medical Imaging, 2008, San Diego, California, United States

Abstract

Coronary territory maps, which associate myocardial regions with the corresponding coronary artery that supply them, are a common visualization technique to assist the physician in the diagnosis of coronary artery disease. However, the commonly used visualization is based on the AHA-17-segment model, which is an empirical population based model. Therefore, it does not necessarily cope with the often highly individual coronary anatomy of a specific patient. In this paper we introduce a novel fully automatic approach to compute the patient individual coronary supply regions in CTA datasets. This approach is divided in three consecutive steps. First, the aorta is fully automatically located in the dataset with a combination of a Hough transform and a cylindrical model matching approach. Having the location of the aorta, a segmentation and skeletonization of the coronary tree is triggered. In the next step, the three main branches (LAD, LCX and RCX) are automatically labeled, based on the knowledge of the pose of the aorta and the left ventricle. In the last step the labeled coronary tree is projected on the left ventricular surface, which can afterward be subdivided into the coronary supply regions, based on a Voronoi transform. The resulting supply regions can be either shown in 3D on the epicardiac surface of the left ventricle, or as a subdivision of a polarmap.

Citation Download Citation

Dominik Fritz, Alexander Wiedemann, Ruediger Dillmann, and Michael Scheuering "Fully automatic detection and visualization of patient specific coronary supply regions", Proc. SPIE 6916, Medical Imaging 2008: Physiology, Function, and Structure from Medical Images, 691602 (12 March 2008); https://doi.org/10.1117/12.769778

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KEYWORDS

Image segmentation

Visualization

Hough transforms

Arteries

Heart

Spherical lenses

Binary data

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