Gray scale and color duplex ultrasound of great saphenous vein valve. Note closure of the valve leaflets during the valsalva maneuver.
64 year old male, type 1 diabetes, with a prior femoral to politeal bypass graft and a subsequent poplileal to tibial bypass graft.
101 year old female, admitted to the hospital with foot and toe pain. Patient had a cool pulseless foot.