Cerebral Angiography

Cerebral angiography uses a catheter, x-ray imaging guidance and an injection of contrast material to examine blood vessels in the brain for abnormalities such as aneurysms and disease such as atherosclerosis (plaque). The use of a catheter makes it possible to combine diagnosis and treatment in a single procedure. Cerebral angiography produces very detailed, clear and accurate pictures of blood vessels in the brain and may eliminate the need for surgery.

When is the procedure recommended?

Healthcare providers use this procedure to detect or confirm abnormalities within the blood vessels in the brain, including:

  • Confirm presence of an aneurysm, brain tumor, or blood clot
  • Evaluate arteries of the head and neck before surgery
  • Minimize complications before other medical treatment; such as in the surgical removal or vessel abnormality

How is the procedure performed?

Using x-ray-guidance, our interventional radiologist inserts a catheter into a blood vessel within the groin or arm and guides it through the blood vessels to the brain. Contrast material is then injected through the catheter. A special machine, called a power injector, is used to deliver the contrast material at a precise rate and volume. When the contrast material reaches the blood vessels being examined, several series of x-rays images will be obtained. When the procedure is complete, the catheter will be removed. In some cases, the procedure may include the use of a closure device to seal the small hole in the artery. 

What are the benefits?

  • Angiography may eliminate the need for surgery. If surgery remains necessary, it can be performed more accurately.
  • Cerebral angiography presents a very detailed, clear and accurate picture of blood vessels in the brain. This is especially helpful when a surgical procedure or other treatment is being considered.
  • Use of a catheter makes it possible to combine diagnosis and treatment in a single procedure.
  • X-rays usually have no side effects in the typical diagnostic range for this exam.

 

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