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目的 探讨Doppler超声在静脉性勃起功能障碍 (ED)诊断中的应用价值。 方法 10例静脉性ED者在阴茎海绵体内血管活性药物注射 (ICI)后 ,行Doppler超声检查 ,并同时海绵体内灌注生理盐水 ,动态观察不同勃起状态海绵体动脉舒张期血流变化 ,30例心理性ED者仅ICI后行Doppler超声检查作对照。 结果 静脉性ED者在勃起硬度差时 ,海绵体动脉舒张期表现为前向血流 (正值表示 ) ,随着海绵体内生理盐水灌注后 ,勃起硬度逐渐增加 ,舒张末期血流消失 ;达正常勃起时 ,舒张期表现逆向血流 (负值表示 )。心理性ED者在阴茎膨胀期、海绵体动脉舒张期表现前向血流 ,正常勃起时 ,舒张期表现逆向血流。结论 在海绵体动脉供血正常情况下 ,静脉关闭障碍导致海绵体内压受损 ,舒张期出现血流动力学异常 ,前向血流为一特征性表现 ,因此Doppler超声在静脉性勃起功能障碍的诊断中具有一定价值
Objective To investigate the value of Doppler ultrasound in the diagnosis of venous erectile dysfunction (ED). Methods Ten cases of venous ED were subjected to Doppler echocardiography after intracapsular injection of intravascular angiogenic drug (ICI). At the same time, spontaneous intracavernosal perfusion of normal saline was used to observe the changes of diastolic blood flow in spontaneous erection, 30 cases of psychology ED EDIC only after ICI Doppler ultrasound examination as a control. The results of venous ED edema in poor edema, diastolic cavernous artery showed forward blood flow (positive values), with the intracavernous saline infusion, erection hardness gradually increased, end diastolic blood flow disappeared; up to normal When erection, diastolic manifestations of reverse blood flow (negative value). Psychological ED who in the penis dilation, diastolic cavernous artery showed the anterior to normal blood flow, normal erection, diastolic blood flow showed reverse. Conclusion In the normal circumstance of spontaneous arterial blood supply, the barrier of venous occlusion leads to the impaired internal pressure of sponge and the abnormal hemodynamics during diastole. The anterior flow is a characteristic manifestation. Therefore, the diagnosis of venous erectile dysfunction by Doppler ultrasonography In a certain value