Thoracic Outlet Syndrome Diagnostic
Thoracic outlet syndrome (TOS) is a group of disorders that occur when the blood vessels or nerves in the thoracic outlet (the space between your collarbone and your first rib) become compressed. This can cause pain in your shoulders and neck and numbness in your fingers. An ultrasound can determine whether or not there is any compression of the subclavian artery or vein with the arm in various positions to confirm any arterial or venous TOS.
Testing takes approximately 15 minutes.