CT shows extensive subarachnoid hemorrhage.

Vasospasm is defined by narrowing of the blood vessel diameter. This can lead to tissue death (necrosis). Cerebral vasospasms may arise in the context of subarachnoid hemorrhage. The blood vessels react to subarachnoid hemorrhage with vessel wall thickening and muscular spasm, resulting in severe decrease of caliber and flow. Vasospasm is a major contributor to postoperative stroke and death after brain injury, aneurysm repair and any other source bleeding within the brain. Vasospasm may not appear until four to eight days after injury.

CTA shows right sided posterior communicating irregular aneurysm.

Post clipping angiogram shows severe spasm of the carotid and middle cerebral arteries. The patient developed new weakness.

Intraprocedural angiogram shows balloon cathether inflated in the M1 segment of the MCA.

Final angiogram shows marked increase in the vessel caliber. 

The S. Mark Taper Foundation Imaging Center provides a full range of advanced imaging, both radiology and cardiology, as well as interventional radiology and interventional tumor (oncology) treatments to the greater Los Angeles area, including Beverly Hills, Encino, Mid-Cities, Sherman Oaks, Silver Lake, Studio City, Toluca Lake, and West Hollywood.