Publication result detail

Measurement of Radio Frequency Magnetic Field

BARTUŠEK, K.; GESCHEIDTOVÁ, E.

Original Title

Measurement of Radio Frequency Magnetic Field

English Title

Measurement of Radio Frequency Magnetic Field

Type

Paper in proceedings (conference paper)

Original Abstract

A high quality of magnetic fields is one of the basic prerequisites for a perfect operation of the MR tomographic scanner. Magnetic susceptibility of materials that are used for body implants causes much distortion in MR images. The paper deals with mapping the radiofrequency magnetic field induction in the vicinity of these materials with the aim of characterizing the magnetic field and comparing the results with fields simulated in the ANSYS program. Magnetic resonance method of radiofrequency magnetic field mapping was verified and optimized for both the characterizing of MR imaging detecting coil and the effects of electrical conducting samples. The designed method is based on optimized spin-echo imaging sequence with small flip angle.

English abstract

A high quality of magnetic fields is one of the basic prerequisites for a perfect operation of the MR tomographic scanner. Magnetic susceptibility of materials that are used for body implants causes much distortion in MR images. The paper deals with mapping the radiofrequency magnetic field induction in the vicinity of these materials with the aim of characterizing the magnetic field and comparing the results with fields simulated in the ANSYS program. Magnetic resonance method of radiofrequency magnetic field mapping was verified and optimized for both the characterizing of MR imaging detecting coil and the effects of electrical conducting samples. The designed method is based on optimized spin-echo imaging sequence with small flip angle.

Keywords

MR tomographic scanner, magnetic susceptibility, body implants, mapping the radiofrequency magnetic field, ANSYS program.

Key words in English

MR tomographic scanner, magnetic susceptibility, body implants, mapping the radiofrequency magnetic field, ANSYS program.

Authors

BARTUŠEK, K.; GESCHEIDTOVÁ, E.

Released

26.03.2007

Publisher

The electromagnetic academy

Location

Peking

ISBN

978-1-934142-00-4

Book

PIERS 2007

Edition

PIERS

Pages from

237

Pages to

240

Pages count

4

BibTex

@inproceedings{BUT21918,
  author="Karel {Bartušek} and Eva {Gescheidtová}",
  title="Measurement of Radio Frequency Magnetic Field",
  booktitle="PIERS 2007",
  year="2007",
  series="PIERS",
  number="1",
  pages="237--240",
  publisher="The electromagnetic academy",
  address="Peking",
  isbn="978-1-934142-00-4"
}