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Initial experience with a next-generation low-field MRI scanner: Potential for breast imaging?

Matthias Dietzel1, Frederik B Laun1, Rafael Heiß1

  • 1Department of Radiology, University Hospital Erlangen, Maximiliansplatz 3, 91054 Erlangen, Germany.

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|February 8, 2024
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Summary

Low-field breast MRI using a novel 0.55T scanner demonstrates diagnostic image quality. This technology offers a promising solution to improve breast MRI accessibility and reduce costs, making it feasible for clinical use.

Keywords:
0.55TAccessibilityBreast MRIBreast cancerBreast neoplasmsDiagnostic techniques and proceduresDiffusion magnetic resonance imagingEfficiencyLow-fieldLow-field systemMagnetic resonance imagingPoint-of-careSocioeconomic

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Area of Science:

  • Radiology
  • Medical Imaging
  • Biomedical Engineering

Background:

  • Clinical adoption of breast MRI is limited by availability and cost.
  • Low-field MRI technology presents a potential solution to these challenges.
  • Next-generation low-field scanners aim to enhance accessibility and reduce procedural expenses.

Purpose of the Study:

  • To evaluate the initial clinical experience with a next-generation low-field 0.55T breast MRI scanner.
  • To assess the feasibility and image quality of low-field breast MRI.
  • To determine if diagnostic image quality can be achieved within acceptable scan times.

Main Methods:

  • A prospective case series involving 12 participants.
  • Utilized a 0.55T MAGNETOM Free.Max scanner with a seven-channel breast coil.
  • Implemented a multiparametric MRI protocol including T1-weighted, T2-weighted, and diffusion-weighted sequences.

Main Results:

  • Diagnostic image quality was achieved in all 12 participants without significant artifacts.
  • Typical imaging phenotypes were visualized effectively.
  • Complete non-abbreviated breast MRI scan times ranged from 10:30 to 18:40 minutes.

Conclusions:

  • Low-field breast MRI at 0.55T is feasible and provides diagnostic image quality.
  • The examination time is acceptable for clinical application.
  • This technology holds promise for increasing breast MRI accessibility and affordability.