[Collateral blood circulation in the occlusion of femoro-popliteal segment of the lower extremity arteries].

Method of ultrasonic duplex scanning was applied for studying of hemodynamics of lower extremities in the norm and while the femoropopliteal segment occlusion. Three most hemodynamically significant ways of the blood flow collateral compensation in a. femoralis superficialis and a. poplitea occlusion: in upper third of femur--a. femoralis profunda, in canalis adductorius region--a. genus descendens; on the crus--a. suralis. Spectral characteristics of the main and collateral blood flow were studied, the criterions of the lower extremities hemodynamics compensation were established.