静脉性勃起功能障碍中阴茎静脉漏的彩色多普勒超声观察

目的 探讨静脉性勃起功能障碍(ED)患者阴茎静脉的血液动力学变化. 方法 静脉性ED患者32例,年龄26～63岁,平均41岁.病程6个月～10年,平均2.5年.采用前列腺素E1试验后行常规阴茎彩色多普勒超声检查,观察阴茎背深静脉、海绵体静脉、球静脉的超声表现,分析其与海绵体动脉阻力指数(RI)的相关性. 结果 32例患者诱发勃起前静脉内径(0.06±0.15)mm,血流速度(4.30+1.36)cm/s,诱发勃起5 min后阴茎静脉管径(1.23±0.30)mm,血液回流增多,血流速度(11.50+4.02)cm/s.阴茎背深静脉、海绵体静脉、球静脉流量与海绵体动脉RI的相关系数r分别为-0.55,-0.53,-0.24(P＜0.05).考虑存在混合性静脉漏因素的前提下,阴茎静脉流量与海绵体动脉RI的r为-0.88(P＜0.001). 结论 高频超声能清楚显示阴茎静脉漏部位,可初步判断静脉性ED患者的静脉漏部位及其程度.

Color Doppler sonographic evaluation in 32 patients with venous leakage in venous incompetence in erectile dysfunction

Objective To investigate the hemodynamic change of venous leakage in venogenic impotence. Methods Thirty-two patients with vasculogenic impotence were evaluated with conventional penile duplex sonography with spectral analysis and color Doppler imaging after intracavernosal injection of PGE1 to induce an erection.The color Doppler appearance of deep dorsal vein of penis,cavernous veins and bulbourethral vein wen observed and the correlativity with resistance index(RI)of cavernous artery were analyzed. Results After five minutes following intracavernous injection,the flow and diameter of the penis vein were continuous increased.The coefficient correlation r between the discharge of deep dorsal vein of penis,cavernous veins and bulbourethral vein with RI of cavernous artery were-0.55,-0.53,-0.24(P＜0.05).Considering the existence of mixed venous leakage,r between the discharge of vein of penis with RI of cavernous artery was-0.88(P＜0.001).Conclusions Higher qualitative ultrasound imaging could demonstrate venous leakage sensitively and assess the location and degree of venous leakage in venogenic impotence initially.