Feed and wrap magnetic resonance urography provides anatomic and functional imaging in infants without anesthesia

J Pediatr Urol. 2020 Feb;16(1):116-120. doi: 10.1016/j.jpurol.2019.11.002. Epub 2019 Nov 11.


Objective: To describe a technique for performing magnetic resonance urogram (MRU) in infants without sedation or anesthesia.

Methods: Eighteen infants underwent MRU in the absence of sedating medications using a 'feed and wrap' technique (FW-MRU). Dynamic contrast enhanced images were obtained. Dynamic radial VIBE and compressed sensing image reconstruction were used to correct for motion artifact.

Results: Seventeen of the 18 patients had successful FW-MRU. Feed and wrap' magnetic resonance urogram provided high-quality anatomic and functional renal data.

Conclusion: Initial experience with FW-MRU demonstrates it to be a promising anesthesia-free modality for obtaining anatomic and functional imaging of the urinary tract in infants.

Keywords: Imaging; Magnetic resonance imaging; Pediatrics; Prenatal hydronephrosis.

MeSH terms

  • Eating
  • Humans
  • Infant
  • Infant Care / methods
  • Infant, Newborn
  • Magnetic Resonance Imaging*
  • Urinary Tract / abnormalities*
  • Urinary Tract / diagnostic imaging*
  • Urinary Tract / physiopathology
  • Urography / methods*
  • Urologic Diseases / diagnostic imaging*
  • Urologic Diseases / physiopathology