In simple words: This is a special type of MRI scan of your head that takes pictures of your blood vessels. It's done in two parts: first without dye, and then with dye injected into your arm to get clearer pictures.

Magnetic resonance angiography (MRA) of the head is performed to visualize the blood vessels. Initially, images are acquired without contrast material. Following this, a contrast agent, typically gadolinium-based, is administered intravenously, and additional sequences are obtained to enhance the visualization of the vasculature. This comprehensive approach allows for a detailed evaluation of both the anatomical structure and the blood flow dynamics within the head's circulatory system.

Example 1: A patient with suspected intracranial aneurysm undergoes MRA of the head with and without contrast to confirm the diagnosis and assess its size and location., A patient experiencing transient ischemic attacks (TIAs) undergoes MRA to evaluate for carotid artery stenosis or other vascular abnormalities that may be contributing to the symptoms., A patient with a history of head trauma undergoes MRA to assess for vascular injuries, such as dissection or arteriovenous malformations.

Documentation should include the reason for the MRA, clinical indications, and the results of the imaging study. Any relevant prior imaging or medical history should also be noted.