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Abdominal Radiology

, Volume 44, Issue 12, pp 3800–3810 | Cite as

Update on MR urography (MRU): technique and clinical applications

  • Jorge Abreu-Gomez
  • Amar Udare
  • Krishna P. Shanbhogue
  • Nicola SchiedaEmail author
Special Section : Urothelial Disease

Abstract

Magnetic resonance imaging of the upper tract (pyelocalyces and ureters) or MR Urography (MRU) is technically possible and when performed correctly offers similar visualization of the upper tracts and for detection of non-calculous diseases of the collecting system similar specificity but with lower sensitivity compared to CTU. MRU provides the ability to simultaneously image the kidneys and urinary bladder with improved soft tissue resolution, better tissue characterization and when combined with assessment of the upper tract, a comprehensive examination of the urinary system. MRU requires meticulous attention to technical details and is a longer more demanding examination compared to CTU. Advances in MR imaging techniques including: parallel imaging, free-breathing motion compensation techniques and compressed sensing can dramatically shorten examination times and improve image quality and patient tolerance for the exam. This review article discusses updates in the MRU technique, summarizes clinical indications and opportunities for MRU in clinical practice and reviews advantages and disadvantages of MRU compared to CTU.

Keywords

Magnetic resonance imaging Urography Urothelium 

Notes

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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Medical Imaging, The Ottawa HospitalThe University of OttawaOttawaCanada
  2. 2.Department of RadiologyNYU Langone HealthNew YorkUSA
  3. 3.The Ottawa HospitalThe University of OttawaOttawaCanada

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