title: Dilated renal collecting systems: differentiating obstructive from nonobstructive dilation using duplex Doppler ultrasound.
abstract: Two patients with ileal loop urinary diversions, studied with real-time and Doppler sonography ("duplex sonography") of the kidneys, were shown to have dilated intrarenal collecting systems. Resistive index measurements calculated from the Doppler signal correctly identified obstructive dilatation in 1 case and nonobstructive dilatation in the other.
authors.affiliation: Department of Diagnostic Radiology, University of Michigan Medical Center, Ann Arbor.
authors.forename: R O
authors.initials: RO
authors.lastname: Bude
authors.forename: J F
authors.initials: JF
authors.lastname: Platt
authors.forename: J M
authors.initials: JM
authors.lastname: Rubin
authors.forename: D A
authors.initials: DA
authors.lastname: Ohl
mesh_terms: D000328:Adult; D004108:Dilatation, Pathologic / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D007082:Ileum / Q000601:surgery; D007685:Kidney Tubules, Collecting / Q000000981:diagnostic imaging*; D008875:Middle Aged; D011184:Postoperative Period; D014463:Ultrasonography; D001749:Urinary Bladder Neoplasms / Q000601:surgery; D014547:Urinary Diversion