What is an OCC MRA?

OCC MRA stands for "occlusive carotid magnetic resonance angiography." It is a non-invasive imaging technique that uses magnetic resonance imaging (MRI) to visualize the carotid arteries, which are the main arteries that supply blood to the brain.

An OCC MRA can help diagnose various conditions affecting the carotid arteries, such as:

Narrowing of the carotid arteries (carotid stenosis)

Blockage of the carotid arteries (carotid occlusion)

Aneurysms (ballooning) of the carotid arteries

Dissection of the carotid arteries (a tear in the inner lining of the artery)

OCC MRA is performed using a powerful magnet and radio waves to create detailed images of the carotid arteries. The procedure typically takes about 30 minutes and does not require the use of contrast dye, which can be beneficial for people with allergies to contrast agents.

OCC MRA is generally considered a safe and well-tolerated procedure, although some people may experience side effects such as dizziness, nausea, or headaches. It is important to discuss any concerns or potential risks with the doctor before undergoing the procedure.