Mellinger B C, Vaughan E D
Department of Urology, Long Island Jewish Medical Center, New Hyde Park, New York.
J Urol. 1990 Oct;144(4):894-6. doi: 10.1016/s0022-5347(17)39617-9.
We studied penile blood flow changes with duplex ultrasound scanning in 8 potent young men during the flaccid state and during the erect state induced by visual sexual stimulation. Measured parameters obtained from the cavernous arteries were arterial diameter, peak blood flow velocity and blood flow acceleration. The mean arterial diameter change was 72% associated with average blood flow velocity and acceleration changes of approximately 200%. Actual values for blood flow velocity and acceleration were considerably higher when compared to papaverine-induced values measured in psychogenically impotent men. Visual sexually stimulated penile arterial changes are not analogous to papaverine-induced arterial changes and these differences raise questions about the appropriateness of using psychogenically impotent men as controls for measurement of penile arterial function with duplex scanning.
我们对8名性功能正常的年轻男性在疲软状态下以及在视觉性刺激诱导的勃起状态下，用双功能超声扫描研究阴茎血流变化。从海绵体动脉获得的测量参数为动脉直径、峰值血流速度和血流加速度。动脉平均直径变化为72%，平均血流速度和加速度变化约为200%。与在精神性阳痿男性中测量的罂粟碱诱导值相比，血流速度和加速度的实际值要高得多。视觉性刺激引起的阴茎动脉变化与罂粟碱诱导的动脉变化不同，这些差异引发了关于将精神性阳痿男性作为双功能扫描测量阴茎动脉功能的对照是否合适的问题。
