Aitchison M, Aitchison J, Carter R
Department of Urology, Royal Infirmary, Glasgow.
Br J Urol. 1990 Aug;66(2):202-4. doi: 10.1111/j.1464-410x.1990.tb14904.x.
The intra- and inter-observer variation in the measurement of the penile brachial index (PBI) was prospectively assessed in 30 patients. An appreciable error was discovered that cast doubt on the reliability of the measurements. Up to 20% of patients deemed normal by one observer would be deemed abnormal by a second. The PBI appears to be an inaccurate and poorly reproducible test of penile blood flow which can lead to a false diagnosis and subsequent management of impotent patients. There would appear no justification for the continued use of the penile brachial index in the assessment of erectile dysfunction.
对30例患者前瞻性评估了阴茎肱动脉指数（PBI）测量中的观察者内和观察者间差异。发现了一个明显的误差，这对测量的可靠性产生了怀疑。一名观察者认为正常的患者中，高达20%会被另一名观察者判定为异常。PBI似乎是一种不准确且重复性差的阴茎血流检测方法，可能导致对阳痿患者的误诊及后续处理。在勃起功能障碍评估中继续使用阴茎肱动脉指数似乎没有依据。
