![]() ![]() In this uncommonly used test, your doctor inserts a thin, flexible tube (catheter) through a small incision, usually in your groin, and guides it through your major arteries and into your carotid or vertebral artery. This test shows buildup of fatty deposits (plaques) and blood flow in your carotid arteries. ![]() In this test, sound waves create detailed images of the inside of the carotid arteries in your neck. Your doctor may inject a dye into a blood vessel to view the arteries and veins and highlight blood flow (magnetic resonance angiography or magnetic resonance venography). An MRI can detect brain tissue damaged by an ischemic stroke and brain hemorrhages. An MRI uses powerful radio waves and magnets to create a detailed view of your brain. Doctors may inject a dye into your bloodstream to view your blood vessels in your neck and brain in greater detail (computerized tomography angiography). A CT scan can show bleeding in the brain, an ischemic stroke, a tumor or other conditions. A CT scan uses a series of X-rays to create a detailed image of your brain. You may have several blood tests, including tests to check how fast your blood clots, whether your blood sugar is too high or low, and whether you have an infection. You'll also have a neurological exam to see how a potential stroke is affecting your nervous system. Your doctor will do a number of tests you're familiar with, such as listening to your heart and checking your blood pressure. A cerebral angiogram showing a carotid aneurysm associated with stroke. ![]()
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