Friedburg H G, Wimmer B, Hennig J, Frankenschmidt A, Hauenstein K H
Institut für Röntgendiagnostik, Universitätsklinikum Freiburg.
Urologe A. 1987 Nov;26(6):309-16.
Potentials and limitations of a new, facultative non-tomographic Fast-Imaging sequence "RARE-MR-Urography" are presented. Its results in urological diseases are discussed on the basis of a pilot study of 35 patients. The images (4 s-32 s acquisition time) are extremely T2-weighted and display unbounded free water (urine). They reveal valuable information, not available with ultrasound or conventional radiology without application of contrast agents in the presence of urine retention. S/N problems reduce the accuracy of this method if the urinary tract contains only small amounts of urine.
本文介绍了一种新型的、兼用型非断层快速成像序列“RARE-MR尿路造影”的潜力和局限性。基于对35例患者的初步研究，讨论了其在泌尿系统疾病中的应用结果。这些图像（采集时间为4秒至32秒）具有极高的T2加权，能显示无界游离水（尿液）。在存在尿潴留且未使用造影剂的情况下，它们能揭示超声或传统放射学无法提供的有价值信息。如果尿路中仅含有少量尿液，信噪比问题会降低该方法的准确性。
