Tests Christie Clinic Vein & Vascular Center provides the highest quality clinical care for our patients. Our team excels in innovative solutions to challenging vascular problems including medical or surgical management, aneurysms, or aortic dissections. Below is a list of tests our care team performs. Angiogram An angiogram is an X-ray procedure that is performed if you have blockages in arteries that are causing symptoms. An angiogram detects blockages using X-rays taken during the injection of a contrast agent (iodine dye), allowing your vascular surgeon to view the flow of the dye and identify blockages. Angiograms are typically performed while you are sedated. The procedure may last 15-20 minutes or up to several hours, depending on how difficult the test is and how much treatment is given. Ankle-Brachial Index Ankle-Brachial Index or an ABI Test, is a non-invasive test that uses inflatable cuffs to gauge blood flow and measure blood pressure in the arteries in your lower extremities. The test is similar to having your blood pressure checked with an arm cuff. Computed Tomography Angiography Computed Tomography Angiography (CTA) tests are non-invasive, advanced imaging studies that provide detailed information about the blood vessels within your body and their relationships with other organs. CTAs take a few minutes to complete, involve exposure to radiation and require the use of an IV. Duplex Ultrasound Duplex Ultrasound is a non-invasive evaluation of blood flow through your arteries and veins. Many arteries and the veins can be studied by ultrasound, including the carotid, arm and leg arteries as well as the abdominal aorta. Veins are also tested to help detect a clot or reflux. Magnetic Resonance Angiography Magnetic Resonance Angiography (MRA) tests are non-invasive, advanced imaging studies that provide detailed information about the blood vessels within your body and their relationships with other organs. The testing may require 20-30 minutes, but does not involve exposure to radiation.