Advances in vessel wall imaging techniques using high-resolution MR sequences now allow for improved visualization of the walls of intracranial vessels. In this study, we present results obtained with a 3D SPACE to visualize the walls of intracranial aneurysms and to grade the extent of aneurysm wall enhancement in subjects whose aneurysms were monitored over time. Our studies showed that visualization of the aneurysm wall is significantly better on post-contrast images than on pre-contrast images, and the majority of unruptured aneurysms show wall enhancement. Furthermore, we found the wall enhancement scores to remain essentially unchanged on follow up studies.
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