Pickard R S, Oates C P, Sethia K K, Powell P H
Department of Urology, Freeman Hospital, Newcastle upon Tyne.
Br J Urol. 1991 Nov;68(5):537-40. doi: 10.1111/j.1464-410x.1991.tb15400.x.
Colour duplex ultrasonography was used to obtain peak systolic velocity (PSV) readings from cavernosal arteries at rest and during papaverine-induced tumescence. Results from 31 men with vasculogenic impotence were compared with those from 17 men with non-vasculogenic impotence and a control group of 6 potent men. In the flaccid state no significant differences in PSV readings were found between the vasculogenic and control groups. Following the injection of papaverine, men from the vasculogenic group without venous leakage were alone in having significantly lower PSV readings compared with the potent controls. All 23 men with normal penile haemodynamics had a mean PSV greater than or equal to 20 cm/s during tumescence. This was also the case for 19 (61%) of the vasculogenic group, including 9 (69%) of the 13 patients with venous leakage. The remaining 12 men in the vasculogenic group (39%) had a mean PSV less than 20 cm/s, this being diagnostic of an inadequate arterial inflow. Colour duplex ultrasonography can identify patients who have marked arterial insufficiency as the major cause of their impotence and hence allows more rational selection for angiography and revascularisation. Lesser degrees of arterial deficit are difficult to characterise using mean PSV readings alone.
采用彩色双功能超声检查法获取海绵体动脉在静息状态下以及注射罂粟碱诱发阴茎勃起时的收缩期峰值流速（PSV）读数。将31例血管性阳痿患者的检查结果与17例非血管性阳痿患者以及6例性功能正常男性的对照组结果进行比较。在疲软状态下，血管性阳痿组与对照组的PSV读数无显著差异。注射罂粟碱后，血管性阳痿组中无静脉漏的患者与性功能正常的对照组相比，PSV读数显著降低。所有23例阴茎血流动力学正常的男性在阴茎勃起时平均PSV大于或等于20厘米/秒。血管性阳痿组中的19例（61%）也是如此，其中包括13例有静脉漏患者中的9例（69%）。血管性阳痿组中其余12例男性（39%）平均PSV小于20厘米/秒，这可诊断为动脉血流不足。彩色双功能超声检查法能够识别出以明显动脉供血不足为主要阳痿病因的患者，从而使血管造影和血管重建术的选择更加合理。仅使用平均PSV读数难以明确程度较轻的动脉供血不足情况。
