Techniques for editing and visualizing CT-angiographic data

CT-Angiography acquires a volume of data defining vasculature in three dimensions. Prior to 3D visualization, bones have to be removed from the volume. We describe methods that reduce the workload for manual outlining of contours or remove bone structures in the abdomen, chest or head and neck region automatically. Volume rendering has been used to provide information not displayed with Maximum Intensity Projection or Surface Shaded Display. Tools have been developed to ease the setting of parameters for volume rendering of CT data.