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"Free super-resolution MRI by BRICKD slices".

Vesselin Z Miloushev1, Kofi Deh2, Kayvan R Keshari2

  • 1Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.

Journal of Magnetic Resonance (San Diego, Calif. : 1997)
|June 16, 2022
PubMed
Summary

BRICKD slices, a method involving fractional pixel shifts between image slices, improves compressed sensing reconstructions. This technique enhances imaging performance compared to standard stacked slices, offering potential clinical implementation.

Keywords:
Compressed sensingMRISlice ditheringSuper-resolution

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Area of Science:

  • Medical Imaging
  • Image Reconstruction
  • Compressed Sensing

Background:

  • Fractional pixel shifts between slices, termed BRICKD slices, mimic a brick wall layout.
  • Standard image reconstruction methods may not fully utilize the information from such acquisitions.

Purpose of the Study:

  • To evaluate the efficacy of compressed sensing reconstructions with BRICKD slices.
  • To compare this approach against traditional stacked slices methods.

Main Methods:

  • Implementing compressed sensing reconstruction algorithms on data acquired with BRICKD slices.
  • Comparing image quality and performance metrics against stacked slices reconstructions.

Main Results:

  • Compressed sensing reconstructions successfully leveraged the additional information from BRICKD slices.
  • The BRICKD slices approach demonstrated improved performance over simple stacked slices.

Conclusions:

  • BRICKD slices combined with compressed sensing offer enhanced imaging performance.
  • The method is straightforward and adaptable for clinical imaging systems.