![]() If a vein or artery has a clot, doctors can deliver medications through the catheter to dissolve the clot. Then your doctor injects a dye through the catheter to show X-ray images of your arteries or veins.ĭoctors can check to see if you have a compressed vein or artery. The catheter is moved through your major arteries in arteriography, or through your veins in venography, to the affected blood vessels. In these tests, your doctor inserts a thin, flexible tube (catheter) through a small incision, usually in your groin. It may be used while your doctor places your head, shoulders and neck in different positions for a better view of the blood vessels in your arm.Īrteriography and venography. An MRI may reveal congenital anomalies, such as a fibrous band connecting your spine to your rib or a cervical rib, which may be the cause of your symptoms. Your doctor may use an MRI to determine the location and cause of blood vessel (vascular) compression, sometimes along with an injected dye to better see the blood vessels. An MRI uses powerful radio waves and magnets to create a detailed view of your body. A CT scan may identify the location and cause of blood vessel (vascular) compression. A dye may be injected into a vein to view the blood vessels in greater detail ( CT angiography). A CT scan uses X-rays to obtain cross-sectional images of your body. X-rays can also help to rule out other conditions that could be causing your symptoms. Your doctor may order a chest X-ray, which may reveal an extra rib (cervical rib). Doctors may use this test to see if you have vascular thoracic outlet syndrome or other vascular problems. It's often the first imaging test used to help diagnose thoracic outlet syndrome. An ultrasound uses sound waves to create images of your body. ![]() To confirm the diagnosis of thoracic outlet syndrome, your doctor may order one or more of the following tests: Your doctor will likely ask about your medical history and symptoms, as well as your occupation and physical activities. Understanding which positions and movements trigger your symptoms can help your doctor identify thoracic outlet syndrome. Your doctor may test range of motion and try to reproduce your symptoms by asking you to move or lift your arms or turn your head. Your doctor will perform a physical examination to look for external signs of thoracic outlet syndrome, such as a depression in your shoulder, a bony abnormality above the collarbone, swelling or pale discoloration in your arm or abnormal pulses.
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