i'm oran frankel an emergency physician scanning the deep veins of the leg can be incredibly helpful in patients presenting with leg pain swelling or when there's a suspicion for a pulmonary embolism to perform the scan i'll use a linear scanner here on the venous preset i start the scan pretty high up the leg up towards the inguinal canal ideally at the point where i can identify a single artery and a single vein from here i can see the saf and his vein take off and i'll start compressing along the way every couple centimeters i'm releasing pressure and compressing to make sure the anterior and posterior walls of those veins collapse i'll follow it all the way down the adductor canal as far as i can once the vein drops out of view we'll resume the scan in the popliteal fossa here finding the palpatio artery and vein going as proximal as i can and then restarting those compressions as i travel down until the vein trifurcates and splits into the calf veins if i get successful compression of the deep veins all along the leg i can feel fairly confident that this patient is not harboring a deep veinous thrombus you
