Methods of assessing Obstruction in Dilated Ureters ¹

Abstract

Summary A simple and informative test is described which will help distinguish the floppy ureter from the obstructed one. The upper tract is perfused at a constant flow rate and the back pressure is measured through a single channel. The procedure is performed under fluoroscopic control and the activity of the ureter is observed. The test has proved to be of value in both children and adults.