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Color-map recommendation for MR relaxometry maps.

Miha Fuderer1, Barbara Wichtmann2,3, Fabio Crameri4

  • 1Radiotherapy, Division Imaging and Oncology, University Medical Center Utrecht, Utrecht, The Netherlands.

Magnetic Resonance in Medicine
|October 17, 2024
PubMed
Summary
This summary is machine-generated.

Researchers recommend specific color maps for magnetic resonance (MR) relaxometry quantitative imaging. The Lipari color map is suggested for T1 and T2 maps, while the Navia color map is recommended for T2* and other maps.

Keywords:
colordisplayquantitative MRrelaxationstandardization

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Area of Science:

  • Medical Imaging
  • Quantitative Magnetic Resonance Imaging (qMRI)

Background:

  • Standardization of color representation in MR relaxometry is crucial for accurate interpretation.
  • Previous efforts have proposed color map settings, but consensus is lacking.

Purpose of the Study:

  • To harmonize color map usage in MR relaxometry.
  • To recommend specific color maps for T1, T2, T2*, and their inverse maps.

Main Methods:

  • Utilized perceptually linearized color maps, aligning with prior research.
  • Employed a Delphi process involving 81 experts to achieve consensus on map suitability.

Main Results:

  • Consensus achieved on using logarithm-processed Lipari color map for T1 and T2 maps.
  • Consensus achieved on using logarithm-processed Navia color map for T2* and other maps.
  • Agreement on mandatory color bars and a specific value for invalid data; no consensus on fixed anatomical ranges.

Conclusions:

  • Recommends logarithm-processed Lipari color map for quantitative T1 and T2 maps.
  • Recommends logarithm-processed Navia color map for T2*, T2, T1, and T2 maps.
  • Endorsed by the Quantitative MR Study Group of the International Society of Magnetic Resonance in Medicine (ISMRM).