Health Library
The Health Library is a collection of health and wellness resources created for learning and accessibility. Select a topic below for related health information or search for a topic in the search bar for more information on other medical conditions.
Diagnostic Neuroimaging
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A computed tomography angiogram (CT angiogram) is a test that uses X-rays to provide detailed pictures of the heart and the blood vessels that go to the heart, lung, brain, kidneys, head, neck, legs, and arms. This test can show narrowed or blocked areas of a blood vessel. It can also show whether there is a bulge (...
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After you have had a seizure, it can be difficult to predict whether you will have more seizures. This makes it hard to decide whether to begin treatment for epilepsy. The first seizure you report may not actually be the first seizure you've had....
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Guides you through the decision to have imaging tests to evaluate your headaches. Looks at the types of imaging tests used, including CT scan and MRI. Includes interactive tool to help you make your decision.
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An MRI scan is the best way to locate multiple sclerosis (MS) lesions (also called plaques) in the brain or spinal cord. An MRI scan is abnormal in more than 95% of people recently diagnosed with MS. But abnormal MRI results do not always...
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A computed tomography (CT) scan uses X-rays to make pictures of the head and face. During the test, you will lie on a table that is attached to the CT scanner, which is a large doughnut-shaped machine. Your head will be positioned inside the scanner. The CT scanner sends X-rays through the head. Each rotation of the...
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Discusses test (also called MRI scan) that uses a magnetic field and pulses of radio wave energy to make pictures of the head. Covers why it is used, including helping to diagnose a stroke or blood vessel problems in the head and looking for tumors or infections.