CPT® Code 70548

Magnetic resonance angiography (MRA) is a specialized imaging technique that utilizes magnetic fields and radiofrequency pulses to create detailed images of blood vessels in the neck. This noninvasive procedure is particularly useful for evaluating both arterial and venous structures, allowing healthcare professionals to diagnose various vascular conditions. The procedure can be performed with or without the use of contrast materials, which enhance the visibility of blood vessels. Specifically, CPT® Code 70548 refers to MRA of the neck that is conducted with the administration of contrast material(s). This technique is essential for identifying conditions such as atherosclerotic stenosis, which is the narrowing of arteries due to plaque buildup, arterial dissection, where a tear forms in the artery wall, acute thrombosis, which involves the formation of a blood clot, and aneurysms or pseudo-aneurysms, which are abnormal bulges in the arterial wall. Additionally, MRA can help detect vascular loops, malformations, tumors, and arterial causes of pulsatile tinnitus, a condition characterized by hearing a rhythmic sound in the ears. The procedure may also be indicated following vascular surgery to assess the status of neck vessels. During the MRA, multiple images are captured, typically 1-2 mm thick, and processed using advanced algorithms to create maximum intensity projections (MIPs), which provide a clear view of the areas of interest. The images are then interpreted by a radiologist, who provides a comprehensive written report of the findings.