A minimally invasive imaging procedure that uses X-rays and contrast dye to visualize blood vessels in the brain, helping diagnose vascular conditions like aneurysms, AVMs, stenosis, and stroke-related abnormalities.
Patients may present with headaches, vision changes, dizziness, stroke-like symptoms, or neurological deficits. The angiogram helps confirm or rule out vascular causes such as aneurysms, clots, or malformations.
A catheter is inserted into an artery (usually in the groin or wrist), guided to the brain, and contrast dye is injected to capture detailed images. The procedure takes 1–3 hours and is typically outpatient. Risks include bleeding, infection, allergic reaction to dye, or rare stroke.
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