<p>Radiologists perform a CT Angiography procedure to examine vascular structures and associated pathologies such as aneurysms. Volume rendering is used to exploit volumetric capabilities of CT that provides complete interactive 3-D visualization. However, bone forms an occluding structure and must be segmented out. The anatomical complexity of the head creates a major challenge in the segmentation of bone and vessel.</p>
S. Suryanarayanan, Mullick, R., Mallya, Y., Kamath, V., and Nagaraj, N., “Automatic Partitioning of Head CTA for Enabling Segmentation”, in Medical Imaging 2004, 2004.