Haden H T, Katz P G, Mulligan T, Zasler N D
Nuclear Medicine Service, Veterans Administration Medical Center, Richmond, VA 23249.
J Nucl Med. 1989 Jun;30(6):1032-5.
Penile erectile failure is often attributed to abnormalities of vascular supply or drainage, but few direct measurements of penile blood flow have been made. We describe the xenon washout method for measurement of penile blood flow, and present the results obtained in a group of normal and impotent subjects. The procedure was performed with standard nuclear imaging equipment. Flaccid-state penile blood flow in the impotent patients studied was not significantly different from the normal group, suggesting that flaccid-state measurements may not be helpful in evaluation of erectile failure. However, this method can be used to measure penile venous outflow with stimulated or induced erection, and may provide a method for detecting abnormal venous leakage.
阴茎勃起功能障碍常被归因于血管供应或引流异常，但对阴茎血流的直接测量却很少。我们描述了用于测量阴茎血流的氙清除法，并展示了在一组正常和阳痿受试者中获得的结果。该操作使用标准核成像设备进行。所研究的阳痿患者在疲软状态下的阴茎血流与正常组无显著差异，这表明疲软状态下的测量可能对评估勃起功能障碍没有帮助。然而，这种方法可用于测量刺激或诱发勃起时的阴茎静脉流出量，并可能提供一种检测异常静脉漏的方法。
