Knispel H H, Andresen R
Department of Urology, Klinikum Steglitz, Free University of Berlin, FRG.
Eur Urol. 1992;21(1):22-6. doi: 10.1159/000474794.
The use of color-coded duplex sonography of the cavernous arteries in the assessment of arteriogenic impotence was evaluated in 70 consecutive men referred for erectile dysfunction. Controls were 16 of the men with an unequivocal nocturnal penile tumescence and rigidity. After intracavernous injection of prostaglandin E1, peak flow velocity was 26.8 +/- 12.5 cm/s in patients and 37.2 +/- 13.0 cm/s in controls (p less than 0.05). 50% of the patients, but none of the controls, had peak flow velocities of less than 20 cm/s in at least 1 cavernous artery. However, within the range of 20-40 cm/s, there was marked overlap between groups. The mean flow velocity and resistance index did not improve the discriminative value of peak flow velocity. Peak flow velocity after intracavernous injection of vasoactive drug enables the discrimination between impotent patients and controls. In a single patient, however, particularly one with a flow velocity of 20-40 cm/s, definition of arteriogenic impotence remains difficult.
对70例因勃起功能障碍前来就诊的男性患者，评估了采用彩色编码双功能超声检查海绵体动脉在诊断动脉性阳痿中的作用。对照组为16例夜间阴茎勃起和硬度明确的男性。海绵体内注射前列腺素E1后，患者的峰值流速为26.8±12.5 cm/s，对照组为37.2±13.0 cm/s（p<0.05）。50%的患者至少有1条海绵体动脉的峰值流速低于20 cm/s，而对照组无一例如此。然而，在20-40 cm/s范围内，两组之间有明显重叠。平均流速和阻力指数并未提高峰值流速的鉴别价值。海绵体内注射血管活性药物后的峰值流速能够区分阳痿患者和对照组。然而，对于单个患者，尤其是峰值流速在20-40 cm/s之间的患者，动脉性阳痿的诊断仍很困难。
