Compressed Sensing Coronary MRI Sequence

Technology No. 20170287

Higher Acceleration Rates than Parallel Imaging

A novel MRI (Magnetic Resonance Imaging) imaging sequence and reconstruction method uses a randomly undersampled acquisition of a 3D k-space to allow a compressed sensing accelerated coronary MRI sequence. Compressed sensing allows for acceleration rates higher than parallel imaging.

Coronary MRI still faces major challenges, including lengthy acquisition time, low signal-to-noise-ratio (SNR), and suboptimal spatial resolution. Higher spatial resolution in the sub-millimeter (sub-mm) range is desirable, but this results in increased acquisition time and lower SNR, hindering its clinical implementation.

Phase of Development

  • Prototype developed. Demonstrated across multiple in vivo studies.

Features

  • Compressed sensing accelerated coronary MRI sequence
  • Randomly undersampled acquisition of a 3D k-space
  • Higher acceleration rates than parallel imaging
  • Improved signal-to-noise ratio

Applications

  • Conventional MRI scanners
  • Magnetic resonance imaging (MRI)


Researchers
Mehmet Akcakaya, PhD
Assistant Professor
External Link (ece.umn.edu)

Publications
Accelerated isotropic sub‐millimeter whole‐heart coronary MRI: Compressed sensing versus parallel imaging
Magn Reson Med. , 2014 Feb; 71(2): 815–822
Accelerated coronary mri using compressed sensing with transform domain dependencies: a feasibility study
Journal of Cardiovascular Magnetic Resonance, 2010 12 (Suppl 1) :P36

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