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SAR in parallel transmission

  • I. Graesslin
  • , D. Glaesel
  • , S. Biederer
  • , F. Schweser
  • , P. Vernickel
  • , P. Bäornert
  • , B. Annighoefer
  • , H. Stahl
  • , H. Dingemans
  • , G. Mens
  • , P. Harvey
  • , U. Katscher
  • Koninklijke Philips N.V.
  • University of LÄubeck

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Parallel transmission bears the potential of compensating B1 field inhomogeneities induced by wave propagation effects in (ultra) high field whole body MR imaging. However, with increasing field strength, the RF power deposition and the associated local specific absorption rate (SAR) represent an important attention point with respect to patient safety. This paper presents simulations of a 3T whole body eight-channel transmit/receive body coil loaded with a human bio-mesh model. Phantom SAR simulations were carried out and validated by temperature measurements. A good correlation between SAR simulations and measured temperature was obtained, so that the FDTD method can be considered to be a valuable tool in determining (local) SAR for patient safety in multi-channel transmission MRI systems.

Original languageEnglish
Title of host publicationProgress in Electromagnetics Research Symposium 2008, PIERS 2008 Cambridge
PublisherElectromagnetics Academy
Pages691-695
Number of pages5
ISBN (Print)9781618390547
StatePublished - 2008
EventProgress in Electromagnetics Research Symposium 2008, PIERS 2008 Cambridge - Cambridge, MA, United States
Duration: Jul 2 2008Jul 6 2008

Publication series

NameProgress in Electromagnetics Research Symposium
ISSN (Print)1559-9450

Conference

ConferenceProgress in Electromagnetics Research Symposium 2008, PIERS 2008 Cambridge
Country/TerritoryUnited States
CityCambridge, MA
Period07/2/0807/6/08

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