High-fidelity mesoscale in-vivo diffusion MRI through gSlider-BUDA and circular EPI with S-LORAKS reconstruction
DC Field | Value | Language |
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dc.contributor.author | Liao, C. | - |
dc.contributor.author | Yarach, U. | - |
dc.contributor.author | Cao, X. | - |
dc.contributor.author | Iyer, S.S. | - |
dc.contributor.author | Wang, N. | - |
dc.contributor.author | Kim, T.H. | - |
dc.contributor.author | Tian, Q. | - |
dc.contributor.author | Bilgic, B. | - |
dc.contributor.author | Kerr, A.B. | - |
dc.contributor.author | Setsompop, K. | - |
dc.date.accessioned | 2024-02-26T07:01:40Z | - |
dc.date.available | 2024-02-26T07:01:40Z | - |
dc.date.issued | 2023-07-15 | - |
dc.identifier.issn | 1053-8119 | - |
dc.identifier.issn | 1095-9572 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/32683 | - |
dc.description.abstract | Purpose: To develop a high-fidelity diffusion MRI acquisition and reconstruction framework with reduced echo-train-length for less T2* image blurring compared to typical highly accelerated echo-planar imaging (EPI) acquisitions at sub-millimeter isotropic resolution. Methods: We first proposed a circular-EPI trajectory with partial Fourier sampling on both the readout and phase-encoding directions to minimize the echo-train-length and echo time. We then utilized this trajectory in an interleaved two-shot EPI acquisition with reversed phase-encoding polarity, to aid in the correction of off-resonance-induced image distortions and provide complementary k-space coverage in the missing partial Fourier regions. Using model-based reconstruction with structured low-rank constraint and smooth phase prior, we corrected the shot-to-shot phase variations across the two shots and recover the missing k-space data. Finally, we combined the proposed acquisition/reconstruction framework with an SNR-efficient RF-encoded simultaneous multi-slab technique, termed gSlider, to achieve high-fidelity 720 µm and 500 µm isotropic resolution in-vivo diffusion MRI. Results: Both simulation and in-vivo results demonstrate the effectiveness of the proposed acquisition and reconstruction framework to provide distortion-corrected diffusion imaging at the mesoscale with markedly reduced T2*-blurring. The in-vivo results of 720 µm and 500 µm datasets show high-fidelity diffusion images with reduced image blurring and echo time using the proposed approaches. Conclusions: The proposed method provides high-quality distortion-corrected diffusion-weighted images with ∼40% reduction in the echo-train-length and T2* blurring at 500µm-isotropic-resolution compared to standard multi-shot EPI. © 2023 The Author(s) | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | Academic Press Inc. | - |
dc.title | High-fidelity mesoscale in-vivo diffusion MRI through gSlider-BUDA and circular EPI with S-LORAKS reconstruction | - |
dc.type | Article | - |
dc.publisher.location | 미국 | - |
dc.identifier.doi | 10.1016/j.neuroimage.2023.120168 | - |
dc.identifier.scopusid | 2-s2.0-85159475362 | - |
dc.identifier.wosid | 001002046500001 | - |
dc.identifier.bibliographicCitation | NeuroImage, v.275 | - |
dc.citation.title | NeuroImage | - |
dc.citation.volume | 275 | - |
dc.type.docType | Article | - |
dc.description.isOpenAccess | Y | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Neurosciences & Neurology | - |
dc.relation.journalResearchArea | Radiology, Nuclear Medicine & Medical Imaging | - |
dc.relation.journalWebOfScienceCategory | Neurosciences | - |
dc.relation.journalWebOfScienceCategory | Neuroimaging | - |
dc.relation.journalWebOfScienceCategory | Radiology, Nuclear Medicine & Medical Imaging | - |
dc.subject.keywordPlus | NOISE RATIO EFFICIENCY | - |
dc.subject.keywordPlus | OFF-RESONANCE | - |
dc.subject.keywordPlus | PARALLEL MRI | - |
dc.subject.keywordPlus | SENSE | - |
dc.subject.keywordPlus | SIGNAL | - |
dc.subject.keywordPlus | ARTIFACTS | - |
dc.subject.keywordPlus | IMAGES | - |
dc.subject.keywordAuthor | Diffusion MRI | - |
dc.subject.keywordAuthor | Distortion correction | - |
dc.subject.keywordAuthor | Echo-planar imaging | - |
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