Morphologic and functional evaluation of duplicated renal collecting systems with MR urography: A descriptive analysis.

Purpose: To describe the morphology and function of duplicated collecting systems in pediatric patients undergoing functional MR urography (fMRU).

Methods: This is a HIPAA compliant IRB approved retrospective study of all patients with duplicated renal collecting systems undergoing fMRU at our institution between 2010 and 2017. Two pediatric radiologists evaluated the studies to determine the presence, morphology and function of duplicated collecting systems using both T2-weighted and dynamic post-contrast fat saturated T1-weighted images.