Dear all,
We are setting up a new Siemens Vida with a 64-channel headcoil using a multiband sequence. We established most configurations with the help of Siemens engineers and ran some initial tests. For one configuration we are however not sure. The sequence includes “Distortion correction” and we are not sure of whether to switch it on or off. (1) If we set to OFF gre_fielmap would be acquired and used for offline distortion correction, or would it make sense to (2) set it to ON and benefit from the correction, or (3) set it to ON and include the additional offline field correction? A general concern is whether the online distortion correction may lead to changes in the brain shape or signal that may later reduce the sensitivity for analyzing changes related to neural processing.
Many thanks in advance and best wishes,
Ben
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Benjamin Becker, PhD
Professor of Cognitive and Affective Neuroscience
State Key Laboratory of Brain and Cognitive Sciences
Department of Psychology
The University of Hong Kong
E-mail: [log in to unmask] / [log in to unmask]
Googlescholar: https://bit.ly/2NRESie
Researchgate: https://bit.ly/3utehIU
Twitter: @bn_becker
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