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A continuously variable field of view surface coil.

R Duensing1, J Fitzsimmons, D Sanford

  • 1University of Florida, Department of Radiology, Gainesville 32610.

Magnetic Resonance in Medicine
|March 1, 1990
PubMed
Summary
This summary is machine-generated.

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A novel adjustable surface coil for MRI offers continuously variable field of view. This radiofrequency trombone design maintains frequency stability, enhancing imaging utility for applications like the human spine.

Area of Science:

  • Magnetic Resonance Imaging (MRI)
  • Radiofrequency Engineering

Background:

  • Standard MRI surface coils have fixed field of view limitations.
  • Adjusting coil size often leads to frequency instability, complicating imaging protocols.

Purpose of the Study:

  • To introduce a novel surface coil with a continuously adjustable field of view.
  • To demonstrate the frequency stability of this new coil design across various dimensions.

Main Methods:

  • Development of a surface coil incorporating a modified radiofrequency trombone mechanism.
  • Testing of the coil's frequency stability while varying its dimensions.
  • Acquisition of human spine MRI images using the adjustable coil.

Main Results:

Related Experiment Videos

  • The coil's area can be increased by up to 60% while maintaining frequency stability.
  • Frequency stability was maintained within approximately 1 MHz at a operating frequency of 63.5 MHz.
  • Clinical images of the human spine demonstrated the practical utility of the adjustable coil design.

    • Conclusions:

    • The new adjustable surface coil provides a flexible and stable imaging solution.
    • This design overcomes limitations of fixed-size coils, offering improved adaptability in MRI.
    • The demonstrated clinical utility suggests potential for broader applications in medical imaging.