[Ultrasonic duplex scanning in occlusion of abdominal aorta, arteries of iliac segment and of lower extremities].

The regional hemodynamics peculiarities were studied in patients with various types of occlusive-stenotic affection of abdominal aorta and iliac arteries, using ultrasonic duplex scanning. The character of the blood flow peculiarity along main arteries and collateral branches was determined depending on the affection level. The quantitative indexes of blood flow along the most significant collaterals were studied as well as their role in the compensation process of the disordered distal blood flow.