real time compression ultrasound

1- put the probe perpendicular to the vascular flow.
2-start at groin.
3-identify common femoral vein(medial) and artery(lateral).
4-use linear array probe 5-7.5 mhz.
5-make a light pressure so the vein will not be closed.
6-then put further pressure on the vein
if it is collapsed completely(both walls opposed to each other)---> it is a healthy vein
if it is not collapsed at all or collapsed partially---> vein contains thrombus.
7-reflective thrombus could be seen within the lumen of the vein.
8-apply this technique from the groin to the adductor canal with 1 cm intervals.
9-to examine the popliteal vein turn the patient into lateral decubitus position with knee flexed.
10-then from posterior fossa , the vein will be anterior to the artery.
11-popliteal vein is followed upward to adductor canal and inferiorly to tibio-peroneal trunk.
12-at this point , examination was ended.