MRA is a magnetic resonance angiography technique that can visualize the entire vascular system without contrast and can be performed without having to create a shadow, and with magnetic resonance can understand the vascular signs and can show venous signs and arterial signs. Magnetic resonance angiography (MRA) is used clinically to examine intracranial vessels, aortic vessels, as well as lower extremity vessels, upper extremity vessels, and visceral vessels. CTA examinations, or CT angiography, are also commonly used clinically. CT angiography has a higher resolution than MR angiography, but CT angiography must use iodine contrast, and if the patient is allergic to iodine, CT angiography cannot be performed, and only magnetic resonance angiography techniques (MRA) can be performed.