Schwartz A N, Lowe M A, Ireton R, Berger R E, Richardson M L, Graney D O
Department of Radiology, University of Washington, Seattle.
J Urol. 1990 Mar;143(3):510-3. doi: 10.1016/s0022-5347(17)40004-8.
We studied 32 impotent patients with angiography. The penile branchial index was calculated from the maximal penile arterial pressure measured from any penile artery. In 15 of the 32 patients an attempt was made to isolate the cavernous artery pressure (cavernous artery penile brachial index). There was a poor correlation between angiography and penile branchial index (r equals 0.314) and between angiography and cavernous penile brachial index (r equals 0.637). We also evaluated 15 normal individuals and a wide range of penile brachial index values was found (0.7 to 1.0). Penile brachial index values from normal patients overlapped with those from impotent patients. Penile brachial index values from impotent patients with normal and abnormal arteries (as determined by angiography) overlapped. The fact that penile brachial index measurements are performed in the flaccid state and without direct visualization of the cavernous arteries accounts for some of the variability of the penile brachial index test.
我们对32例阳痿患者进行了血管造影研究。阴茎臂指数是根据从任何阴茎动脉测得的最大阴茎动脉压计算得出的。在32例患者中的15例中，尝试测量海绵体动脉压（海绵体动脉阴茎臂指数）。血管造影与阴茎臂指数之间的相关性较差（r = 0.314），血管造影与海绵体阴茎臂指数之间的相关性也较差（r = 0.637）。我们还评估了15名正常个体，发现阴茎臂指数值范围较广（0.7至1.0）。正常患者的阴茎臂指数值与阳痿患者的阴茎臂指数值有重叠。血管造影显示动脉正常和异常的阳痿患者的阴茎臂指数值有重叠。阴茎臂指数测量是在阴茎疲软状态下进行的，且未直接观察海绵体动脉，这是阴茎臂指数测试存在一定变异性的部分原因。
