MRI Brain & Orbit With Contrast

Specimen Required

NONE

Fasting Required

Purpose of the Test

The MRA Circle of Willis With Contrast is typically ordered to detect and evaluate abnormalities in the blood vessels of the brain, such as stenosis, aneurysm, or blockages. It can also help in the diagnosis and treatment planning of conditions such as stroke, arteriovenous malformations, and cerebral vasculitis.

When this test is required

The test is typically requested by a doctor when there is a suspicion of cerebrovascular disease, such as stroke or aneurysm, or when a patient has symptoms that suggest a problem with the blood vessels in the brain.

What the Test Detects

The MRA Circle of Willis With Contrast is a non-invasive imaging test that uses a powerful magnet and radio waves to create detailed images of the blood vessels in the brain. The test involves the injection of a contrast agent, which is a special dye that helps to highlight the blood vessels and improve the quality of the images.

Preparation for the Test

Patients will be asked to avoid eating or drinking for a few hours before the test, and to inform their doctor and the imaging technician of any allergies, medical conditions, or medications they are taking. Patients with certain health conditions or allergies may need to take medication or receive special preparation before the test.

Sample Requirements

No sample is required for this test.

Additional Notes

MRA Circle of Willis With Contrast is generally considered safe, but it may carry some risks, particularly for patients with kidney disease or other health conditions. Patients should inform their doctor and the imaging technician if they have any concerns or health conditions that may affect the test. The contrast agent used in the test may cause mild side effects, such as a metallic taste in the mouth or a warm sensation, but these usually go away quickly.

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