Visualization Symposium, IEEE Pacific (2012)
Songdo, Korea (South)
Feb. 28, 2012 to Mar. 2, 2012
Gabriel Mistelbauer , Vienna University of Technology, Austria
Andrej Varchola , Vienna University of Technology, Austria
Hamed Bouzari , Austrian Academy of Sciences, Austria
Juraj Starinsky , Comenius University, Bratislava, Slovakia
Arnold Kochl , KFJ Hospital Vienna, Austria
Rudiger Schernthaner , Medical University of Vienna, Austria
Dominik Fleischmann , Stanford University, USA
Meister Eduard Groller , Vienna University of Technology, Austria
Milos Sramek , Austrian Academy of Sciences, Austria
Visualization of vascular structures is a common and frequently performed task in the field of medical imaging. There exist well established and applicable methods such as Maximum Intensity Projection (MIP) and Curved Planar Reformation (CPR). However, when calcified vessel walls are investigated, occlusion hinders exploration of the vessel interior with MIP. In contrast, CPR offers the possibility to visualize the vessel lumen by cutting a single vessel along its centerline. Extending the idea of CPR, we propose a novel technique, called Centerline Reformation (CR), which is capable of visualizing the lumen of spatially arbitrarily oriented vessels not necessarily connected in a tree structure. In order to visually emphasize depth, overlap and occlusion, halos can optionally envelope the vessel lumen. The required vessel centerlines are obtained from volumetric data by performing a scale-space based feature extraction. We present the application of the proposed technique in a focus and context setup. Further, we demonstrate how it facilitates the investigation of dense vascular structures, particularly cervical vessels or vessel data featuring peripheral arterial occlusive diseases or pulmonary embolisms. Finally, feedback from domain experts is given.
A. Varchola et al., "Centerline reformations of complex vascular structures," Visualization Symposium, IEEE Pacific(PACIFICVIS), Songdo, Korea (South), 2012, pp. 233-240.