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Abstract #4653

Improved Fast Whole-Brain High Resolution Diffusion Imaging on 7 Tesla MRI

Merry Mani1, Xinzeng Wang2, and Baolian Yang3
1University of Iowa, Iowa City, IA, United States, 2GE Healthcare, Houston, TX, United States, 3GE Healthcare, Waukesha, WI, United States

Synopsis

Keywords: Brain Connectivity, High-Field MRIAchieving high resolution in diffusion MRI is challenging due to its inherently low SNR, vulnerability to motion and other EPI-related artifacts. On higher field-strengths, the SNR advantage can be exploited to push the resolution if the echo-time can be effectively reduced and the increased number of slices can be efficiently acquired. Combining acceleration techniques such as multi-band and parallel imaging is critical for this approach. Here we combine two deep-learned reconstruction priors, one pertaining to the q-space and another pertaining to image artifact removal, into a model-based iterative reconstruction framework to improve the quality of highly accelerated high-resolution 7T DWIs.

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Keywords