Single-shot, B1-insensitive slice selection with a gradient-modulated adiabatic pulse, BISS-8

Robin A. De Graaf, Klaas Nicolay, Michael Garwood

Research output: Contribution to journalArticle

32 Scopus citations

Abstract

An adiabatic pulse has been developed to accomplish uniform slice- selective excitation with a spatially inhomogeneous B1. This new pulse can generate a uniform, arbitrary flip angle that is determined by four adjustable phase shifts in the pulse. Self-refocused slice selection is achieved by modulating a B0 gradient in concert with the pulse frequency (or phase) modulation. B1-compensated, self-refocused slice selection is demonstrated in computer simulations and phantom experiments using a surface transmitter/receiver coil. This adiabatic pulse can provide optimal performance in multislice MRI and localized spectroscopy when transmitting with an inhomogeneous B1.

Original languageEnglish (US)
Pages (from-to)652-657
Number of pages6
JournalMagnetic resonance in medicine
Volume35
Issue number5
DOIs
StatePublished - May 1996

Keywords

  • B- compensation
  • adiabatic pulse
  • self-refocusing
  • slice-selective excitation

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