Meeting Banner
Abstract #0453

Simultaneous Multislice pTx for Readout-Segmented Diffusion Imaging at 7 T

Sydney Nicole Williams1, Iulius Dragonu2, Belinda Ding1,2, Patrick Liebig3, and David A. Porter1
1Imaging Centre of Excellence, University of Glasgow, Glasgow, United Kingdom, 2Siemens Healthcare Ltd. United Kingdom, Frimley, United Kingdom, 3Siemens Healthcare GmbH, Erlangen, Germany


This abstract addresses the challenges of 7T diffusion MRI associated with shorter T2/T2* and inhomogeneous B1+ field by implementing simultaneous multislice (SMS) parallel-transmit (pTx) slice-by-slice shimming in a readout-segmented diffusion-weighted sequence, RESOLVE. The benefits of pTx were compared to conventional single-transmit circularly polarized (CP) mode both with and without SMS using a matched high-resolution diffusion protocol in the same healthy volunteer. Slice-by-slice shimming significantly improves signal homogeneity while SMS opens the door for improved scan efficiency. The simplicity of slice-by-slice shimming and sequence integration makes this a practical solution for routine 7T imaging.

This abstract and the presentation materials are available to members only; a login is required.

Join Here