Abstract
Currently, radiologists use several techniques to evaluate and explore vessels inside the cranium of a neuro CT Angiography scan. Surrounding bone makes it difficult to accurately view the vessels that are close to the cranium and skull base. Manual sculpting and region growing techniques are available, but radiologists are interested in faster and more accurate techniques. Advances in bone removal using a non-contrast and contrast enhanced scan for automated bone removal yield promising results in this area. Two of these algorithms, Matched Mask Bone Elimination (MMBE) and Multi-Resolution Registration Bone Subtraction (MRBS), were tested on five patients in order to study which method resulted in better images. After evaluating each case based on five criteria, it was determined that although Matched Mask Bone Elimination had a better average score, its results were not statistically different from results obtain with the Multi-Resolution Registration Bone Subtraction technique.
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