Export CT-AAA2 from 3d Slicer

[lassoan (Andras Lasso)]

Note that what you visualize with volume rendering may appear as a surface when viewed on a 2D screen, but it is actually a surface-like rendering of a semi-transparent point cloud, and therefore it cannot be “saved” as a surface mesh. You must segment it if you need it as .obj or .stl, as Steve described above. See this post for more detailed explanation: Save volume rendering as STL file.