CPT® Code 70547

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. The procedure identified by CPT® Code 70547 specifically refers to MRA performed without the use of contrast materials. This noninvasive approach allows healthcare providers to assess the condition of arterial and venous vessels, making it a valuable tool in diagnosing various vascular conditions. MRA is particularly useful for evaluating issues 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 refers to the formation of a blood clot, and the presence of aneurysms or pseudo-aneurysms. Additionally, MRA can help identify 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 on neck vessels to monitor their status. During the MRA, multiple images are captured, typically 1-2 mm thick, and processed using advanced algorithms to generate maximum intensity projections (MIPs), which provide enhanced visualization of the blood vessels. The radiologist reviews these images, along with the initial MRA scans, to interpret the findings and provide a comprehensive report.