Patent ID: 8548566

Claim:
A method, comprising: obtaining volumetric data indicative of an anatomical structure and a residual material on the anatomical structure in a subject, wherein the residual material has a radiation attenuation that is higher than a radiation attenuation of the anatomical structure; generating binary data by segmenting voxels representing the residual material from the volumetric data by thresholding the volumetric data with a threshold value corresponding to the radiation attenuation of the residual material and greater than the radiation attenuation of the anatomical structure; generating dilated binary data by adding unsegmented voxels touching the segmented voxels of the binary data to the binary data; assigning a first set of visuals or display attributes to the dilated binary data; assigning a second set of visuals or display attributes to the volumetric data; calculating a distance between the rendered surface and the binary data; applying the first and second set of visuals or display attributes based on the distance; and rendering a surface of the anatomical structure from a viewpoint located inside the anatomical structure based on both the volumetric data and the dilated binary data, wherein voxels of the dilated binary data that are indicative of the residual material and that intersect the rendered surface, when viewed from a perspective of the viewpoint, are visually highlighted on the rendered surface.