Ding Y Y, Sahadevan S, Pang W S, Choo P W
Department of Geriatric Medicine, Tan Tock Seng Hospital, Singapore.
Singapore Med J. 1996 Aug;37(4):365-8.
Post-voiding residual urine volume is an important investigation in the management of voiding dysfunction. Catheterisation is widely regarded as the "gold" standard method of measurement. We investigated the performance of a portable ultrasound scanner (Bladder Scan BVI-2500), as an alternative method of measurement.
This study was prospective in nature. One hundred measurements of post-voiding residual urine volume by ultrasound were compared with measurements by catheterisation.
The mean absolute error of the scanner was 52 mL. For volumes below 200 mL and 100 mL, this was 36 mL and 24 mL respectively. A decision regarding whether to decompress the bladder by catheterisation would have also been correct in 86% to 89% of instances, depending on the cut-off value of the residual volume used. In other words, the ultrasound measurement would have been correct in 9 out of 10 clinical cases.
We recommend the routine use of portable ultrasound scanners of similar accuracy in the measurement of post-voiding residual urine volume.
排尿后残余尿量是排尿功能障碍管理中的一项重要检查。导尿术被广泛视为测量的“金”标准方法。我们研究了便携式超声扫描仪（膀胱扫描仪BVI - 2500）作为一种替代测量方法的性能。
本研究本质上是前瞻性的。将通过超声测量的100次排尿后残余尿量与通过导尿术测量的结果进行比较。
扫描仪的平均绝对误差为52毫升。对于低于200毫升和100毫升的尿量，分别为36毫升和24毫升。根据所使用的残余尿量临界值，在86%至89%的情况下，关于是否通过导尿术对膀胱进行减压的决定也会是正确的。换句话说，在10个临床病例中，超声测量在9个病例中是正确的。
我们建议常规使用具有类似准确性的便携式超声扫描仪来测量排尿后残余尿量。
