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Targeted rapid knee MRI exam using T2 shuffling.

Jonathan I Tamir1, Valentina Taviani2, Marcus T Alley3

  • 1Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, California, USA.

Journal of Magnetic Resonance Imaging : JMRI
|January 15, 2019
PubMed
Summary
This summary is machine-generated.

This study demonstrates a rapid, 10-minute pediatric knee MRI exam is feasible. The targeted approach significantly reduces imaging time and cost, improving same-day access for children needing musculoskeletal evaluations.

Keywords:
3D FSEMR valueT2 shufflingcompressed sensingrapid multicontrast imagingturbo spin-echo (TSE)

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Area of Science:

  • Radiology and Imaging Science
  • Pediatric Musculoskeletal Imaging

Background:

  • Magnetic Resonance Imaging (MRI) is crucial for diagnosing pediatric musculoskeletal conditions.
  • Challenges in pediatric MRI include scheduling difficulties and lengthy examination times, hindering timely access.

Purpose of the Study:

  • To assess the feasibility of a rapid, targeted pediatric knee MRI protocol.
  • To reduce examination costs and improve same-day MRI availability for pediatric patients.

Main Methods:

  • A prospective cost-effectiveness study involving 47 pediatric patients.
  • Implementation of a 10-minute MRI protocol using T2 Shuffling and T1 2D FSE sequences.
  • Utilized a distributed, compressed sensing-based reconstruction integrated into clinical workflow.

Main Results:

  • 20 out of 49 targeted exams were completed on the same day as referral.
  • Median scan completion time was 18.7 minutes, with T2 Shuffling reconstruction reduced to 95 seconds.
  • Technical fees were one-third of routine knee MRI exams; no repeat imaging was required.

Conclusions:

  • The targeted rapid pediatric knee MRI exam is clinically feasible.
  • This approach effectively decreases imaging time, lowers costs, and facilitates same-day MRI access for pediatric patients.