Chen J, Greenstein A, Sofer M, Matzkin H
Department of Urology, Tel Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel-Aviv University, 6 Weizman Street, Tel Aviv 64329, Israel.
Int J Impot Res. 1999 Dec;11(6):315-8; discussion 318. doi: 10.1038/sj.ijir.3900438.
Both RigiScan and the Snap Gauge band devices are used to objectively measure penile rigidity. The Snap Gauge band is the more simple and inexpensive of the two techniques. We investigated the correlation between the results obtained by both devices in order to evaluate whether the Snap Gauge band could be employed as the sole method of rigidity evaluation while not affecting the quality of diagnosis. Forty eight patients who were presented to our erectile dysfunction clinic used the two devices simultaneously, each according to the accepted protocols. Breakage of two and three strings of the Snap Gauge (good rigidity) correlated well with good tip and average rigidity as evaluated by the RigiScan. Snap gauge results also correlated with duration of erection, number of erections, the number of adequate erections, and the longest duration of erection measured by the RigiScan. Therefore, good rigidity according to the Snap Gauge test correlated well with the results of functional erections (number, rigidity, duration) as obtained by the RigiScan. The Snap Gauge band can be used to adequately evaluate penile rigidity. RigiScan measurements, which are more complicated and more expensive, should be reserved for selected patients in whom the results of the Snap Gauge band are inconclusive or when more detailed information is required.
RigiScan和Snap Gauge带式设备都用于客观测量阴茎硬度。Snap Gauge带是这两种技术中更简单且更便宜的。我们研究了这两种设备所获结果之间的相关性，以评估Snap Gauge带是否可以用作唯一的硬度评估方法而不影响诊断质量。四十八名到我们勃起功能障碍诊所就诊的患者同时使用这两种设备，每种设备均按照公认的方案使用。Snap Gauge的两根和三根线断裂（良好硬度）与RigiScan评估的良好阴茎头硬度和平均硬度密切相关。Snap Gauge的结果也与勃起持续时间、勃起次数、充分勃起次数以及RigiScan测量的最长勃起持续时间相关。因此，根据Snap Gauge测试得出的良好硬度与RigiScan所获功能性勃起结果（次数、硬度、持续时间）密切相关。Snap Gauge带可用于充分评估阴茎硬度。RigiScan测量更复杂且更昂贵，应保留给Snap Gauge带结果不确定或需要更详细信息的特定患者。
