A simple approach to control rms(B1) by pulse length in variable flip angle (VFA) T1 mapping of human brain

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

Abstract

Controlling the saturation of bound magnetization in variable flip angle (VFA) experiments improves the derived parameter maps. Instead of using special CSMT RF pulses, we kept the rmsB1 constant simply by increasing the RF pulse duration with the square of the flip angle. At 3T, VFA T1 mapping of human brain thus showed better compliance to the Ernst equation than at constant pulse duration or B1 amplitude, but yielded shorter T1.
Original languageEnglish
Title of host publicationProceedings of the 2021 ISMRM & ISMRT Annual Meeting and Exhibition
Place of PublicationConcord, CA
PublisherInternational Society for Magnetic Resonance in Medicine
Volume29
Publication statusPublished - 2021 Apr 30
EventISMRM and SMRT Annual Meeting and Exhibition 2021 - virtual
Duration: 2021 May 152021 May 20

Publication series

NameProc Intl Soc Magn Reson Med
PublisherIntl. Society for Magnetic Resoance in Medicine (ISMRM)
Volume29
ISSN (Electronic)1545-4428

Conference

ConferenceISMRM and SMRT Annual Meeting and Exhibition 2021
Period2021/05/152021/05/20

Subject classification (UKÄ)

  • Radiology and Medical Imaging
  • Other Physics Topics

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