Mizuno Ichiro, Fuse Hideki, Fujiuchi Yasuyoshi, Nagakawa Osamu, Akashi Takuya
Department of Urology, Faculty of Medicine, Toyama Medical and Pharmaceutical University, Toyama, Japan.
Urol Int. 2004;73(4):310-2. doi: 10.1159/000081589.
We studied the relationship between penile hemodynamic parameters assessed by color Doppler ultrasonography and penile rigidity estimated by objective measurement.
A total 37 patients with erectile dysfunction were examined. After intracavernous injection of 20 microg prostaglandin E1, we measured their penile hemodynamic parameters in the cavernous arteries by color Doppler ultrasonography. Simultaneously, the RigiScan Plus device was used for real-time evaluation of penile rigidity. Hemodynamic parameters were correlated with penile rigidity.
Peak systolic velocity and resistive index were significantly correlated with penile tip (r = 0.54, r = 0.72, respectively) and base (r = 0.55, r = 0.76, respectively) rigidity; there was no significant correlation between end-diastolic velocity and penile rigidity.
Peak systolic velocity and resistive index were strongly correlated with penile rigidity in patients with erectile dysfunction during intracavernous pharmacological testing. The resistive index in particular appeared to be the most valid parameter for assessment of penile rigidity.
我们研究了通过彩色多普勒超声评估的阴茎血流动力学参数与通过客观测量估计的阴茎硬度之间的关系。
共检查了37例勃起功能障碍患者。海绵体内注射20微克前列腺素E1后，我们通过彩色多普勒超声测量了他们海绵体动脉的阴茎血流动力学参数。同时，使用RigiScan Plus设备实时评估阴茎硬度。血流动力学参数与阴茎硬度相关。
收缩期峰值流速和阻力指数与阴茎头部（分别为r = 0.54，r = 0.72）和基部（分别为r = 0.55，r = 0.76）硬度显著相关；舒张末期流速与阴茎硬度之间无显著相关性。
在海绵体内药物测试期间，勃起功能障碍患者的收缩期峰值流速和阻力指数与阴茎硬度密切相关。特别是阻力指数似乎是评估阴茎硬度最有效的参数。
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