this striking image of a cerebral angiogram .

aiding analysis anatomy aneurysm angiogram angiography arch arteriography arteriole artery basilar blood brain brains carotid cerebral cerebrovascular circle clot contrast cranial detailed diagnosis disease fluoroscope fluoroscopic graft head headache hemorrhage highlights hospital illness imaging injury ischemia media medical medicine neurology neurosurgery occlusions overlay patient red scan skull striking stroke surgery system thrombosis treatment vascular vasculature vessel vessels view vivid willies