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Abstract #3109

Improved Structural Imaging of the Default Mode Network on the Compact 3T

Thomas Welton1, Matthew Lyon1, Jerome J Maller1,2, Myung-Ho In3, Ek-Tsoon Tan3, Matt A Bernstein4, Erin M Gray4, Yunhong Shu4, John Huston4, and Stuart M Grieve1,5

1Sydney Translational Imaging Laboratory, Heart Research Institute, University of Sydney, Sydney, Australia, 2GE Healthcare, Richmond, Melbourne, Victoria, Australia, 3GE Global Research, Niskayuna, NY, United States, 4Department of Radiology, Mayo Clinic, Rochester, MN, United States, 5Department of Radiology, Royal Prince Alfred Hospital, Sydney, Australia

We compared diffusion MRI tractographic representations of the default mode network using high-angular resolution scans from the Compact 3T with high-performance gradients to equivalent data acquired on a standard clinical scanner. Overall performance in terms of strength, accuracy and visualisation of the DMN was superior for the Compact 3T data, with improved global tracking performance and improved measurement of weaker connections.

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