THE CORRELATION OF CAVERNOUS SYSTOLIC OCCLUSION PRESSURE WITH PEAK VELOCITY FLOW USING COLOR DUPLEX-DOPPLER ULTRASOUND

This prospective study involved 27 patients who underwent dynamic infu sion cavernosometry/cavernosography and color duplex Doppler ultrasoun d. Phase III dynamic infusion cavernosometry/cavernosography determina tion of cavernous artery systolic occlusion pressure and color duplex Doppler measurements of peak velocity flow were performed. Four subpop ulations were defined: 1) normal cavernous artery systolic occlusion p ressure and peak velocity flow, 2) abnormal systolic occlusion pressur e and normal peak velocity flow, 3) normal systolic occlusion pressure and abnormal peak velocity flow, and 4) abnormal systolic occlusion p ressure and peak velocity flow. Peak velocity flow significantly corre lated with cavernous artery systolic occlusion pressure and, using a n ormal value of greater than 25 cm. per second, resulted in a sensitivi ty and specificity of 95%. The positive predictive value of an abnorma l peak velocity flow was calculated to be 95%. We conclude that peak v elocity flow is an effective, reliable and noninvasive means of evalua ting corporeal arterial function in an office setting.