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Related Experiment Videos

SMASH imaging with an eight element multiplexed RF coil array.

J A Bankson1, M A Griswold, S M Wright

  • 1Magnetic Resonance Systems Labs., Department of Electrical Engineering, Texas A&M University, College Station, TX 77843-3128, USA.

Magma (New York, N.Y.)
|June 29, 2000
PubMed
Summary
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Simultaneous Acquisition of Spatial Harmonics (SMASH) enables faster MRI scans. This study shows SMASH imaging is feasible at high acceleration factors using specialized hardware, maintaining image quality.

Area of Science:

  • Magnetic Resonance Imaging (MRI)
  • Medical Imaging Technology

Background:

  • Parallel imaging techniques accelerate MRI acquisition.
  • SiMultaneous Acquisition of Spatial Harmonics (SMASH) utilizes RF coil arrays for k-space encoding.

Purpose of the Study:

  • To assess the feasibility of high-acceleration SMASH imaging.
  • To evaluate SMASH performance with specialized hardware and time domain multiplexing.

Main Methods:

  • Designed an eight-element linear SMASH array.
  • Integrated a time domain multiplexing system for single-channel reception.
  • Acquired and reconstructed SMASH images at various acceleration factors (up to 8x).

Main Results:

  • Maintained signal-to-noise ratio (SNR) across acceleration factors up to eight.

Related Experiment Videos

  • Observed low reconstruction artifact power within the tested acceleration range.
  • Demonstrated feasibility of high-acceleration SMASH imaging.

    • Conclusions:

    • Efficient SMASH imaging at high acceleration factors is achievable with appropriate hardware.
    • Time domain multiplexing is effective for multi-channel data acquisition in rapid imaging.