Noninvasive measurement of pulsatile blood volume changes. Its usefulness in peripheral vascular disease.

A clinical trial was made of a new noninvasive technic for the measurement of arterial blood volume changes in a limb segment. The instrument employed is small, portable, provides a digital display in cc/min, is readily calibrated, gives reproducible values of the segmental phen be used to screen patients with peripheral vascular disease and to assess postoperative results.