Schulz E
Department of Urology, Friedrich Schiller University, Jena, German Democratic Republic.
Urol Res. 1987;15(5):281-6. doi: 10.1007/BF00258196.
Following a morphological analysis of pelvi-calyceal systems (PCS) of healthy persons and urolithiasis patients, rheological studies from glass and rubber PCS-models are presented. In the PCS of urolithiasis patients morphological and geometrical differences were found, causing a flow pattern which favours calculus formation. In urolithiasis, the PCS is characterized by cavities with significantly reduced flow rates and stagnation of urine. The formation of urinary calculi is often promoted by a hypomotility of the muscles of the PCS, common in urolithiasis patients. Possible therapeutic and diagnostic consequences are discussed.
在对健康人和尿路结石患者的肾盂肾盏系统（PCS）进行形态学分析之后，本文展示了对玻璃和橡胶材质的PCS模型所做的流变学研究。在尿路结石患者的PCS中发现了形态和几何形状上的差异，这导致了有利于结石形成的流动模式。在尿路结石病中，PCS的特征是存在流速显著降低的腔隙以及尿液停滞。尿路结石的形成通常因PCS肌肉运动不足而加剧，这在尿路结石患者中很常见。文中讨论了可能的治疗和诊断结果。
