Interactive Exploration of Extra- and Intracranial Blood Vessels
Dirk Bartz, Wolfgang Straβer, Martin Skalej, Dorothea Welte · 1999
Abstract. We present a system for interactive explorations of extraand intracranial blood vessels. Starting with a stack of images from 3D angiography, we use virtual clips to limit the segmentation of the vessel tree to the parts the neuroradiologists are interested in. Furthermore, methods of interactive virtual endoscopy are applied in order to provide an interior view of the blood vessels. CCS Categories: I.3.8 [Application]: Virtual Medicine; I.3.7 [Three-Dimensional Graphics and Realism]: Virtual Reality; Keywords: Virtual Environments, 3D Angiography, Virtual Angioscopy, Interventional Neuroradiology, Selective Segmentation, Computer Assisted Diagnosis. 1 Introduction A common procedure in neuroradiology is the examination of extra- and intracranial blood vessels. After the injection of a contrast agent via an endovascular catheter, X-rays are used to acquire 2D projection images of vessels. These images are of high resolution but lack spatial information due to the projecti...