BladderScan BVI 6200® 不够精确，不能用于膀胱训练计划。
The BladderScan BVI 6200® is not accurate enough for use in a bladder retraining program.
机构信息
Department of Urology, VU University Medical Center, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands.
出版信息
J Pediatr Urol. 2013 Dec;9(6 Pt A):904-9. doi: 10.1016/j.jpurol.2012.12.013. Epub 2013 Jan 29.
OBJECTIVE
Bladder scans are used extensively in adult urology to estimate urinary volumes. For children, smaller devices have been developed. Scarce literature shows conflicting results regarding the accuracy of measurements in children. The BladderScan(®) BVI 6200 has been developed to overcome some of the inaccuracies. We tested this device to see whether it can replace conventional ultrasound in a bladder retraining program.
PATIENTS AND METHODS
84 children (mean age 7.8 years) were included. Measurements with the BVI 6200 were compared to measurements with a graduated cylinder or with conventional ultrasound before and after micturition. All volumes were expressed in milliliters. The measured volumes were compared to each other in a Bland-Altman analysis.
RESULTS
Mean (bias) of the different measurements fell within 10% difference of measurements. The spread of the different measurements around the mean was however very large, with a broad spread of over- and under-estimations of different measured volumes.
CONCLUSION
The BVI 6200 is not reliable enough to replace conventional ultrasound for measurements of bladder volumes. It is not advisable to use it in a bladder retraining program.
目的
膀胱扫描在成人泌尿科中被广泛用于估计尿量。对于儿童，已经开发出了更小的设备。关于儿童测量的准确性，相关文献很少，结果也相互矛盾。BladderScan(®) BVI 6200 的开发是为了克服一些不准确之处。我们测试了该设备，以观察其是否可以替代膀胱训练计划中的传统超声。
患者和方法
纳入 84 名儿童（平均年龄 7.8 岁）。在排尿前后，使用 BVI 6200 与量杯或传统超声进行测量，并将测量值进行比较。所有体积均以毫升表示。使用 Bland-Altman 分析对测量值进行比较。
结果
不同测量值的平均值（偏差）在测量值的 10%差异内。然而，不同测量值围绕平均值的分布非常大，不同测量体积的高估和低估范围很广。
结论
BVI 6200 不够可靠，无法替代传统超声测量膀胱容量。不建议在膀胱训练计划中使用它。
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