彩色多普勒超声检查在血管性勃起功能障碍诊断中的应用

目的评估彩色多普勒超声(CDUS)在血管性阴茎勃起功能障碍(ED)诊断中的临床价值。方法用CDUS检测45例ED患者药物诱导阴茎勃起前、后阴茎海绵体动脉和背深静脉血流动力学情况。结果45例中非血管性ED22例(48.9%),动脉性ED12例(26.7%),静脉性ED11例(24.4%)。勃起时动、静脉性ED组阴茎海绵体动脉收缩期峰值流速(PSV)、阻力指数(EDV)及RI均明显低于非血管性ED组,而疲软时前两组PSV与后一组间无显著性差异。静脉性ED组阴茎背深静脉血流主要表现为持续血流信号,而非血管性和动脉性ED组则不然。结论彩色多普勒超声对诊断血管性ED有重要意义。

Application of color Doppler ultrasonography in the diagnosis of vasogenic erectile dysfunction.

Objective To investigate the use of color Doppler ultrasonography (CDUS) in the diagnosis of vasogenic erectile dysfunction(ED).Methods 45 patients with ED were examined by CDUS and hemodynamics of the cavernous artery and the deep dorsal vein of penis before and after having injected vasoactive agents into the cavernous body of penis were observed.Results 22 patients had nonvasogenic ED (48.9%),12 patients had ED of arterial origin (26.7%) and 11 patients had ED of venous origin (24.4%).When penises were erectile,PSV (peak systolic velocity),EDV (end diastolic velocity)and RI (resistance index)of the cavernous artery in patients with ED of arterial and venous origin were significantly lower than those in patients with nonvasogenic ED,but when penises were flaccid, the PSV between the former two groups and the latter group were not significantly different.The blood flow in the deep dorsal vein was persistent in patients with ED of venous origin,while it was discontinuous or nonexistent in patients with nonvasogenic ED and ED of arterial origin.Conclusion CDUS is an efficient method for the diagnosis of the vasogenic ED.