Diagnostic Cerebral Angiography

Overview

Diagnostic cerebral angiography is a catheter-based imaging procedure that gives highly detailed pictures of the blood vessels of the brain, neck, and sometimes spinal circulation.

Why angiography is performed

A cerebral angiogram may be recommended to:

• Clarify a possible aneurysm or better define its neck and branches.
• Evaluate AVMs or dural AV fistulas in detail.
• Assess carotid or intracranial stenosis.
• Investigate pulsatile tinnitus or venous sinus pathology.
• Confirm whether treatment is needed and which treatment is safest.

How the procedure works

A small catheter is placed into an artery, usually through the wrist or groin, and guided under X-ray into the vessels supplying the brain. Contrast dye is injected while high-speed images are obtained.