Whitaker R H
J Urol. 1975 Jan;113(1):26-9. doi: 10.1016/s0022-5347(17)59398-2.
A means of assessing the degree of obstruction of the ureter involved in retroperitoneal fibrosis by perfusion studies is described and the results in 3 patients are discussed. This type of urodynamic assessment is recommended when the extent of lysis of the ureter is in question.