Comparison between bladderscan, real-time ultrasound and suprapubic catheterisation in the measurement of female residual bladder volume.

Hypothesis / aims of study The measurement of residual urine is an essential part of the management of many urogynaecological patients such as patients with voiding difficulties before or after surgical intervention, patients with neurogenic bladders or dysfunctional voiding. Bladder residual volume has been historically measured by urethral or suprapubic catheterisation and is still considered as the gold standard. However, this method can be uncomfortable and create complications. Alternative non-invasive methods of calculating bladder volumes are therefore desirable and real-time ultrasound is quick, repeatable and accurate for this purpose. Bladderscan however, has an advantage on real-time ultrasound scan that it does not require specialist training, it is simple and easy to use and cost effective as well. It is extremely portable and therefore readily available for use in a busy out -patient setting. This study was therefore carried out to compare Bladderscan, real-time ultrasound scan and suprapubic catheterisation in the measurement of female residual bladder volume.