Vessel cross-section determination based on nonrigid registration and electric field model

Dong-Goo Kang; Won Seong; Jong Beom Ra

doi:10.1117/12.651263

13 March 2006 Vessel cross-section determination based on nonrigid registration and electric field model

Dong-Goo Kang, Won Seong, Jong Beom Ra

Proceedings Volume 6143, Medical Imaging 2006: Physiology, Function, and Structure from Medical Images; 61432H (2006) https://doi.org/10.1117/12.651263
Event: Medical Imaging, 2006, San Diego, California, United States

Abstract

Diameters (or areas) of vessel cross-sections provide useful information for diagnosis and surgery planning. However, the ordinary centerline-perpendicular cross-sections are often inappropriate to use because the centerline may include unwanted local curvatures in irregular or asymmetric regions and high curvatures in sharply bended regions. In this paper, we try to improve the accuracy of vessel cross-section measurement by properly adjusting the centerline. To alleviate local curvatures in the centerline while preserving the global shape faithfully, we register a deformable cylindrical model onto the vessel lumen, and subsequently adopt the axis of the registered model as the adjusted centerline for determining cross-sections. In addition, by introducing the electric field model, we prevent undesirable intersection of cross-sections that is often found in sharply bended regions. Experiments are performed using various synthesized images that simulate abnormal vessels with stenoses or aneurysms. The results show that the registration process successfully eliminates unwanted local curvatures while preserving the global shape of the vessel, and obtained cross-sections do not intersect each other even in the region of high curvature.

Citation Download Citation

Dong-Goo Kang, Won Seong, and Jong Beom Ra "Vessel cross-section determination based on nonrigid registration and electric field model", Proc. SPIE 6143, Medical Imaging 2006: Physiology, Function, and Structure from Medical Images, 61432H (13 March 2006); https://doi.org/10.1117/12.651263

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