Coarse-Grained Spatiotemporal Acquisition Design for Diffusion MRI

Abstract : Acquisition protocols that allow to capture time-dependent changes in diffusion signal require long imaging time. We address this issue through an optimized subsampling scheme that maximizes accuracy of the spatiotemporal diffusion signal representation, qτ-dMRI, for given time constraints. Our proposed coarse-grained variant of the problem reduces the space of feasible acquisition parameters compared to the fine-grained approach causing no significant deterioration of a reconstruction accuracy in most of the studied cases.
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Contributor : Patryk Filipiak <>
Submitted on : Wednesday, March 27, 2019 - 10:59:17 AM
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  • HAL Id : hal-01973588, version 2

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Patryk Filipiak, Rutger Fick, Alexandra Petiet, Mathieu Santin, Anne-Charlotte Philippe, et al.. Coarse-Grained Spatiotemporal Acquisition Design for Diffusion MRI. ISBI 2019 - IEEE International Symposium on Biomedical Imaging, Apr 2019, Venice, Italy. ⟨hal-01973588v2⟩

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