Single‐shot, B1‐insensitive slice selection with a gradient‐modulated adiabatic pulse, BISS‐8
- 1 May 1996
- journal article
- research article
- Published by Wiley in Magnetic Resonance in Medicine
- Vol. 35 (5) , 652-657
- https://doi.org/10.1002/mrm.1910350505
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 Bo 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.Keywords
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