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Related Experiment Videos

Multiple channel phased arrays for echo planar imaging.

G X Shen1, J Wu, F E Boada

  • 1Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong. gxshen@eee.hku.hk

Magma (New York, N.Y.)
|January 13, 2001
PubMed
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A novel phased array breast coil enhances magnetic resonance echo-planar imaging (EPI) by improving signal-to-noise ratio by 55%. This technology offers improved breast imaging and can be expanded for wider applications.

Area of Science:

  • Magnetic Resonance Imaging (MRI)
  • Biomedical Engineering
  • Medical Imaging Technology

Background:

  • Conventional breast MRI coils can limit signal-to-noise ratio (SNR) and field-of-view (FOV) in echo-planar imaging (EPI) applications.
  • Developing advanced imaging hardware is crucial for enhancing diagnostic accuracy in breast cancer detection.

Purpose of the Study:

  • To design and evaluate a novel dual-channel, phased array breast coil optimized for EPI sequences.
  • To assess the performance improvement of the new coil compared to conventional breast MRI coils.

Main Methods:

  • A detailed design of a dual-channel, EPI-compatible, phased array breast coil was developed.
  • EPI digital data multiplexing, signal controlling, and sampling schemes were implemented.
  • The coil's performance was tested using breast phantoms and patient imaging.

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Main Results:

  • The new phased array coil demonstrated a 55% improvement in signal-to-noise ratio (SNR) compared to a conventional single-channel coil.
  • Phantom and patient data confirmed the enhanced imaging capabilities.
  • The system design is scalable to multi-channel configurations (four or more channels).

Conclusions:

  • The developed dual-channel phased array breast coil significantly improves SNR for breast MR EPI.
  • This technology offers a promising advancement for breast MRI, with potential for broader clinical application.
  • The modular design allows for future expansion to enhance FOV coverage and SNR further.