To easily and quickly learn and explore in an interactive way a very detailed cerebral vasculature in three-dimensions (3D) supported by self-testing. To correlate the MRA orthogonal (2D) slices to the 3D vascular surface model to better understand 2D-3D vascular relationships. To learn more about cerebrovascular variants.

To facilitate understanding of cerebrovasculature, a 3D interactive atlas is developed. A very detailed vascular 3D model is extracted from a 3T 3D TOF of 0.8mm3. The model is registered with the MRA. All vascular segments are labeled with names based on Terminologia Anatomica. All major arterial branches (ICA,ACA,MCA,PCA,VA,BA,CW,AChA,OPH) and veins are also labeled with description of topography, variability, and references compiled from books by Grant-Hopkins, Huber, and Kretschmann-Weinrich.

An application is developed to explore the 3D model, its description, and MRA scan. It provides: 1) display and manipulation (rotate, zoom and pan) of the 3D model along with MRA slices; 2) interactive labeling of vasculature with names, topography, variability, and references; 3) simultaneous display of vasculature description linked with the 3D model; 4) searching (of 3D model, its description and vascular index); 5) self-testing; and 6) image saving to facilitate preparing teaching materials.