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What is an CT Cerebral Angiogram Scan?
A cerebral angiogram (CTA) is a diagnostic imaging procedure used to visualize the blood vessels in the brain. The test is performed by injecting a contrast agent into the patient's carotid artery, then performing a CT scan. The contrast agent allows the blood vessels to be seen more clearly on the images. CTA can be used to diagnose a variety of conditions, including stroke, aneurysms, and arteriovenous malformations. The procedure is generally well tolerated.
When & Why CT Cerebral Angiogram Scan is Prescribed?
CT cerebral angiogram scans may be prescribed by a doctor if they suspect an abnormality in the blood vessels of a patient’s brain. This can be due to signs or symptoms of stroke, aneurysm, arteriovenous malformation (AVM), or some other vascular condition. The scan is often used as a follow-up to an MRI or CT scan if certain areas were not clearly visible. It can also be used to plan treatment for some conditions, such as the placement of a stent in the affected blood vessel. The procedure is typically recommended for patients with symptoms of stroke, who have recently had surgery on their brain, and those at high risk for stroke or other vascular conditions.