Günther K P, Steinberger H, Koch J
Urol Int. 1979;34(6):451-62. doi: 10.1159/000280295.
Manometrical examinations of the female urinary bladder are important in the field of urodynamic diagnosis. Accuracy in these measurements is a prerequisite for the reproducibility of the results. In this study, three types of urological manometers, differing in their principles of measurement, were tested for their physical and technical properties. Pressure was measured with a membrane manometer (instrument A) with Statham elements (instrument B), and with a micro-transducer (instrument C). The results using Statham elements and micro-transducers were exactly reproducible and varied only in their interference with external factors, which affect the quality of the results in clinical routine. Concerning the physical technique of measurement, instrument C with micro-transducers gives the most accurate results and is the easiest one to manage. For research and clinical routine it is superior to instrument B. It supplies reproducible data which are independent of external parameters such as the patient's position, attention and the way the instrument is set up. Our results only urodynamical measurements using micro-transducers can be taken as absolute measurements of excellent accuracy and are comparable among themselves as well as with other absolute measurements for long-term series of measurement. Using a membrane manometer (instrument A), measurements were hardly reproducible so that these results can be accepted as orienting data only.
女性膀胱测压检查在尿动力学诊断领域具有重要意义。这些测量的准确性是结果可重复性的前提条件。在本研究中，对三种测量原理不同的泌尿外科测压仪的物理和技术特性进行了测试。使用带有Statham元件的膜式测压仪（仪器A）、Statham元件（仪器B）以及微型传感器（仪器C）进行压力测量。使用Statham元件和微型传感器的结果具有完全可重复性，仅在受外部因素干扰方面存在差异，而外部因素会影响临床常规检查结果的质量。就测量的物理技术而言，带有微型传感器的仪器C给出的结果最为准确，且最易于操作。对于研究和临床常规检查，它优于仪器B。它提供的可重复数据独立于诸如患者体位、注意力以及仪器设置方式等外部参数。我们的结果表明，仅使用微型传感器进行的尿动力学测量可被视为具有极高准确性的绝对测量，并且在长期系列测量中，它们彼此之间以及与其他绝对测量结果具有可比性。使用膜式测压仪（仪器A）时，测量结果几乎不可重复，因此这些结果只能作为参考数据接受。
