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Abstract #0045

Ultra-high resolution multi-shell dMRI and tractography of the ex vivo human brain using kT-dSTEAM at 9.4T

Francisco J. Fritz1, Shubharthi Sengupta1, Robbert L. Harms1, Benedikt A. Poser1, and Alard Roebroeck1

1Cognitive Neuroscience, Maastricht University, Maastricht, Netherlands

Here we explore the high resolution acquisition of multi-shell and undersampled diffusion data with 9.4T kT-dSTEAM and analysis of such data for crossing fiber tractography. This permits effective usage of both high SNR and diffusion-weighting inherent to data with multiple b-values and shows superior definition of white matter tracks at ultra-high resolution for tractography. In addition, 3D undersampled acquisition allows more room in the trade-off between acquisition time, resolution, b-values and directions.

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