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Author Spotlight: Developing a Bedside Protocol for Kidney and Genitourinary Ultrasonography
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"Renal emergencies: a comprehensive pictorial review with MR imaging"

Dheeraj Reddy Gopireddy1, Hagar Mahmoud2, Saif Baig3

  • 1Department of Radiology, UF College of Medicine-Jacksonville, 2nd Floor, Clinical Center, 655 West 8th Street, C90, Jacksonville, FL, 33209, USA. Dheerajreddy.gopireddy@jax.ufl.edu.

Emergency Radiology
|September 25, 2020
PubMed

Insights

Magnetic resonance imaging (MRI) offers superior soft-tissue contrast for diagnosing acute renal emergencies. Advanced MRI techniques provide functional and prognostic information, potentially surpassing computed tomography (CT) and ultrasound (US) in evaluating renal conditions.

Area of Science:

  • Radiology
  • Medical Imaging
  • Nephrology

Background:

  • Magnetic resonance imaging (MRI) offers superior soft-tissue contrast and high sensitivity for disease detection and characterization.
  • Traditionally underutilized in acute care, MRI's role is expanding beyond specific applications like biliary obstruction and pregnancy.
  • Current acute renal emergency evaluations primarily rely on ultrasound (US) and computed tomography (CT), which have limitations.

Purpose of the Study:

  • To highlight the expanded role of MRI in the assessment and characterization of acute renal emergencies.
  • To compare the diagnostic capabilities of MRI with conventional modalities like US and CT for renal conditions.
  • To emphasize MRI's potential to provide functional and prognostic information in acute renal emergencies.

Main Methods:

  • Review of clinical manifestations and key imaging findings for acute renal processes.
  • Discussion of advancements in MRI technology, including rapid, non-contrast, and magnetic resonance angiography (MRA) techniques.
  • Comparison of MRI's advantages over US and CT, considering factors like contrast administration and radiation exposure.

Main Results:

  • MRI demonstrates superior soft-tissue contrast and sensitivity for detecting and characterizing renal diseases.
  • Rapid, non-contrast MRI and MRA offer advantages such as short scan times, free-breathing techniques, and lack of ionizing radiation.
  • MRI may provide superior diagnostic, functional, and prognostic information compared to CT and US in acute renal emergencies.

Conclusions:

  • MRI is a valuable tool for evaluating acute renal emergencies, offering enhanced diagnostic capabilities.
  • Advancements in MRI technology make it a competitive alternative to CT and US, particularly in cases where contrast administration is a concern.
  • MRI's ability to provide functional and prognostic insights adds significant value to the management of acute renal conditions.
Keywords:
EmergencyKidneyMagnetic resonance imagingRenal hemorrhage

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