Jove
Visualize
Contact Us

Related Experiment Videos

Harmonic structure of cylindrical imaging coils.

M D Harpen1

  • 1University of South Alabama, Department of Radiology, Mobile 36617.

Medical Physics
|July 1, 1990
PubMed
Summary

This study derives an exact formula for magnetic resonance imaging (MRI) birdcage coil resonant frequencies. The findings reveal a predictable pattern in these frequencies, crucial for MRI coil design and performance optimization.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Partial wave analysis of the ultrasound comet tail artifact.

Medical physics·2000
Same author

A simple theorem relating noise and patient dose in computed tomography.

Medical physics·1999
Same author

ACR standard for luminance and illuminance. American College of Radiology.

AJR. American journal of roentgenology·1999
Same author

A computer simulation of wavelet noise reduction in computed tomography.

Medical physics·1999
Same author

An introduction to wavelet theory and application for the radiological physicist.

Medical physics·1998
Same author

Dynamic magnetic resonance imaging in evaluating suspicious breast lesions: correlation with pathologic findings.

Southern medical journal·1998
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Area of Science:

  • Physics
  • Electrical Engineering
  • Medical Imaging

Background:

  • Birdcage coils are essential components in Magnetic Resonance Imaging (MRI) systems.
  • Understanding their resonant frequencies is critical for optimal image quality and coil performance.

Purpose of the Study:

  • To derive an exact closed-form expression for the resonant frequency spectra of MRI birdcage coils.
  • To analyze the behavior of these frequencies in the limit of long coils with numerous elements.

Main Methods:

  • Analytical derivation of the resonant frequency spectra.
  • Comparison of theoretical results with experimental observations across various birdcage coil configurations.

Main Results:

  • An exact closed-form expression for resonant frequencies was successfully derived.
  • The analysis confirmed a specific progression of resonant frequencies (omega m = omega 1m +/- 1/2 + low pass; -high pass) even in shorter coils.
  • omega 1 represents the primary resonance, and m is an integer.

Conclusions:

  • The derived formula accurately predicts the resonant frequencies of MRI birdcage coils.
  • The findings provide valuable insights for the design and tuning of birdcage coils for improved MRI performance.

Related Experiment Videos