Diagnostic and Interventional Radiology
Pediatric Radiology - Pictorial Essay

Split-bolus MR urography: synchronous visualization of obstructing vessels and collecting system in children


Department of Radiology, Gülhane Military Medical School, Ankara, Turkey


Department of Radiology, Near East University School of Medicine, Nicosia, Northern Cyprus


Department of Pediatric Nephrology, Gülhane Military Medical School, Ankara, Turkey

Diagn Interv Radiol 2015; 21: 498-502
DOI: 10.5152/dir.2015.15068
Read: 706 Downloads: 227 Published: 03 September 2019


Several vascular abnormalities related with urinary system such as crossing accessory renal vessels, retroiliac ureters, retrocaval ureters, posterior nutcracker syndrome, and ovarian vein syndrome may be responsible for urinary collecting system obstruction. Split-bolus magnetic resonance urography (MRU) using contrast material as two separate bolus injections provides superior demonstration of the collecting system and obstructing vascular anomalies simultaneously and enables accurate preoperative radiologic diagnosis. In this pictorial review we aimed to outline the split-bolus MRU technique in children, list the coexisting congenital collecting system and vascular abnormalities, and exhibit the split-bolus MRU appearances of concurrent urinary collecting system and vascular abnormalities. 

EISSN 1305-3612