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Abstract #0959

Multi-slab whole-brain in vivo 0.35 mm human brain at 7 T with low undersampling to validate future acceleration & denoising

Omer Faruk Gulban1,2, Logan T Dowdle3, Desmond Ho Yan Tse4, Saskia Bollmann5, Rainer Goebel1,2, Benedikt A. Poser1, and Dimo Ivanov1
1Department of Cognitive Neuroscience, Maastricht Univesity, Faculty of Psychology and Neuroscience, Maastricht, Netherlands, 2Brain Innovation, Maastricht, Netherlands, 3Department of Radiology, Center for Magnetic Resonance Research, University of Minnesota, Minneapolis, Netherlands, 4Scannexus, Maastricht, Netherlands, 5School of Electrical Engineering and Computer Science, The University of Queensland, Brisbane, Australia

Synopsis

Keywords: Data Acquisition, Brain, Mesoscopic

Motivation: Our previous work provided 0.35×0.35×0.35 mm3 voxel resolution T2* dataset where the intracortical angioarchitecture details were captured and analyzed (Gulban et al. 2022). However, this work only covered a third of the brain while requiring two scanning sessions.

Goal(s): Our aim here is to explore reducing the scanning time while expanding the brain coverage to get similar quality data for vascular analyses.

Approach: Our approach consisted of exploring further acceleration for T2* imaging and boosting the SNR of T1 images though denoising instead of multi-run averaging.

Results: Our results suggest that we can reduce the scanning time five-fold while accomplishing whole brain overage.

Impact: We provide a low undersampling 0.35 mm in vivo human brain dataset and a scanning protocol (including 7 T T2*, T1 contrasts) for cortical angioarchitecture studies while delivering a reference dataset to test further acceleration and denoising.

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Keywords