Abstract #2936
Velocity selective arterial spin labelling using parallel transmission
Chia-Yin Wu1,2,3, Jin Jin2,4, Carl Dixon1, Donald Maillet1, Markus Barth1,2,3, and Martijn Cloos1,2
1Centre for Advanced Imaging, The University of Queensland, Brisbane, Australia, 2ARC Training Centre for Innovation in Biomedical Imaging Technology, The University of Queensland, Brisbane, Australia, 3School of Information Technology and Electrical Engineering, The University of Queensland, Brisbane, Australia, 4Siemens Healthcare Pty Ltd, Brisbane, Australia
Synopsis
In this work, we demonstrate a parallel transmit implementation of velocity selective arterial spin labelling (VSASL) at 7 Tesla on a custom flow phantom developed in house. The use of tailored pTx pulses can greatly mitigate the transmit field inhomogeneities present at higher field strengths. By manipulating the time symmetry of the pTx pulses in the VSASL module we were able to show significant improvement in velocity selective inversion fidelity.
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