Jove
Visualize
Contact Us
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

Related Experiment Videos

MRI electromagnetic field penetration in cylindrical objects

F R Zypman1

  • 1Department of Physics and Electronics, University of Puerto Rico, Humacao.

Computers in Biology and Medicine
|March 1, 1996
PubMed
Summary
This summary is machine-generated.

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

Gradient equivalent crystal theory.

Journal of physics. Condensed matter : an Institute of Physics journal·2011
Same author

Optimizing blood vessel contrast in fast three-dimensional MRI.

Magnetic resonance in medicine·1990
See all related articles

This study provides exact calculations for radio frequency (RF) electromagnetic fields within a human body model, crucial for Magnetic Resonance Imaging (MRI). The findings aid in understanding RF field behavior for improved MRI applications and education.

Area of Science:

  • Biophysics
  • Medical Imaging Physics
  • Electromagnetism

Background:

  • Accurate Magnetic Resonance Imaging (MRI) relies on understanding radio frequency (RF) electromagnetic fields within biological tissues.
  • The behavior of these fields is complex and influenced by tissue properties and RF coil configurations.

Purpose of the Study:

  • To derive exact solutions for the RF vector potential inside and outside a cylindrical model of the human body.
  • To develop a computational tool for analyzing RF magnetic field phase and magnitude in MRI scenarios.

Main Methods:

  • Solving Maxwell's Equations with specific boundary conditions for a cylindrical object.
  • Incorporating the object's conductivity and dielectric constant, and a uniform current-carrying RF coil.
  • Analyzing two current configurations (longitudinal and phi-directed) in free space and with metallic shielding.

Related Experiment Videos

Main Results:

  • Exact analytical results for the RF vector potential field were obtained.
  • A computer code was developed to evaluate RF magnetic field phase and magnitude for different configurations.
  • The study considered the influence of conductivity, dielectric constant, and metallic shielding on the RF fields.

Conclusions:

  • The derived results and computational code offer precise calculations for RF fields in MRI.
  • This work is valuable for clinical estimations and educational purposes in medical imaging.
  • Understanding RF field behavior is essential for advancing MRI technology and interpretation.