Analysis of radio frequency magnetic field penetration in a body within magnetic resonance imaging antenna

Hisaaki Ochi, Etsuji Yamamoto, Kunio Sawaya, Saburo Adachi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The authors have previously developed a computer code for obtaining the current distribution on the magnetic resonance imaging (MRI) antenna loaded by a male model with an arbitrary geometry and material properties by incorporating the impedance method into the method of Richmond. Using this method, RF magnetic field penetration in a biological body within an MRI antenna is discussed theoretically. It is found that the RF magnetic field produced by the current in the body does not cancel the incident RF magnetic field produced by the current on the MRI antenna, since the phase difference between these magnetic fields deviates from 180°.

Original languageEnglish
Pages (from-to)81-89
Number of pages9
JournalSystems and Computers in Japan
Volume26
Issue number9
DOIs
Publication statusPublished - 1995 Jan 1

Keywords

  • MRI antenna
  • biological body
  • impedance method
  • method of Richmond

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Information Systems
  • Hardware and Architecture
  • Computational Theory and Mathematics

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