Cerebral angiography is a type of medical test that's minimally invasive. The examiner makes use of an x-ray along with iodine which contains contrast material. These items help produce pictures of the brain's blood vessels. During this procedure, the examiner inserts a catheter into one of the arteries in your arm or leg. It goes through a tiny incision in your skin. Through the guidance of the x-ray machine, the examiner will navigate the catheter all the way to the area to examine. Once it's there, the examiner injects the contrast material through the tube. Finally, they will capture the images using the ionizing radiation.
There are two main types of cerebral angiography. The first procedure involves the insertion of a catheter into one of the blood vessels in the arm or groin. The examiner then guides the catheter to the part of your brain they will examine. Then the examiner will use x-rays to create the angiogram or the vessel's picture. Then the dye or contrast gets injected to come up with the images of the brain's blood vessels. There's also the procedure that's noninvasive. This involves an MRI (magnetic resonance imaging) or a CT (computed tomography) to come up with the angiogram.
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