Journal
NEUROIMAGE
Volume 118, Issue -, Pages 667-675Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.neuroimage.2015.06.016
Keywords
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Funding
- NIH [R01 NS-074045, R21 EB-018419, R01 NS-075017, R24 MH-106048]
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The advantages of high-resolution diffusion tensor imaging (DTI) have been demonstrated in a recent postmortem human brain study (Miller et al., NeuroImage 2011; 57(1): 167-181), showing that white matter fiber tracts can be much more accurately detected in data at a submillimeter isotropic resolution. To our knowledge, in vivo human brain DTI at a submillimeter isotropic resolution has not been routinely achieved yet because of the difficulty in simultaneously achieving high resolution and high signal-to-noise ratio (SNR) in DTI scans. Here we report a 3D multi-slab interleaved EPI acquisition integrated with multiplexed sensitivity encoded (MUSE) reconstruction, to achieve high-quality, high-SNR and submillimeter isotropic resolution (0.85 x 0.85 x 0.85 mm(3)) in vivo human brain DTI on a 3 Tesla clinicalMRI scanner. In agreement with the previously reported post-mortem human brain DTI study, our in vivo data show that the structural connectivity networks of human brains can be mapped more accurately and completely with high-resolution DTI as compared with conventional DTI (e.g., 2 x 2 x 2 mm3). (C) 2015 Elsevier Inc. All rights reserved.
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