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Article: Accelerated high-bandwidth MR spectroscopic imaging using compressed sensing

TitleAccelerated high-bandwidth MR spectroscopic imaging using compressed sensing
Authors
Keywordscompressed sensing
Hankel matrix completion
MR spectroscopic imaging
random blip gradients
hyperpolarized carbon-13
calibrationless parallel imaging
Issue Date2016
Citation
Magnetic Resonance in Medicine, 2016, v. 76, n. 2, p. 369-379 How to Cite?
Abstract© 2016 Wiley Periodicals, Inc. Purpose: To develop a compressed sensing (CS) acceleration method with a high spectral bandwidth exploiting the spatial-spectral sparsity of MR spectroscopic imaging (MRSI). Methods: Accelerations were achieved using blip gradients during the readout to perform nonoverlapped and stochastically delayed random walks in kx-ky-t space, combined with block-Hankel matrix completion for efficient reconstruction. Both retrospective and prospective CS accelerations were applied to13C MRSI experiments, including in vivo rodent brain and liver studies with administrations of hyperpolarized [1-13C] pyruvate at 7.0 Tesla (T) and [2-13C] dihydroxyacetone at 3.0 T, respectively. Results: In retrospective undersampling experiments using in vivo 7.0 T data, the proposed method preserved spectral, spatial, and dynamic fidelities with R2≥ 0.96 and ≥ 0.87 for pyruvate and lactate signals, respectively, 750-Hz spectral separation, and up to 6.6-fold accelerations. In prospective in vivo experiments, with 3.8-fold acceleration, the proposed method exhibited excellent spatial localization of metabolites and peak recovery for pyruvate and lactate at 7.0 T as well as for dihydroxyacetone and its metabolic products with a 4.5-kHz spectral span (140 ppm at 3.0 T). Conclusions: This study demonstrated the feasibility of a new CS approach to accelerate high spectral bandwidth MRSI experiments. Magn Reson Med 76:369–379, 2016. © 2016 Wiley Periodicals, Inc.
Persistent Identifierhttp://hdl.handle.net/10722/265697
ISSN
2023 Impact Factor: 3.0
2023 SCImago Journal Rankings: 1.343
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorCao, Peng-
dc.contributor.authorShin, Peter J.-
dc.contributor.authorPark, Ilwoo-
dc.contributor.authorNajac, Chloe-
dc.contributor.authorMarco-Rius, Irene-
dc.contributor.authorVigneron, Daniel B.-
dc.contributor.authorNelson, Sarah J.-
dc.contributor.authorRonen, Sabrina M.-
dc.contributor.authorLarson, Peder E.Z.-
dc.date.accessioned2018-12-03T01:21:25Z-
dc.date.available2018-12-03T01:21:25Z-
dc.date.issued2016-
dc.identifier.citationMagnetic Resonance in Medicine, 2016, v. 76, n. 2, p. 369-379-
dc.identifier.issn0740-3194-
dc.identifier.urihttp://hdl.handle.net/10722/265697-
dc.description.abstract© 2016 Wiley Periodicals, Inc. Purpose: To develop a compressed sensing (CS) acceleration method with a high spectral bandwidth exploiting the spatial-spectral sparsity of MR spectroscopic imaging (MRSI). Methods: Accelerations were achieved using blip gradients during the readout to perform nonoverlapped and stochastically delayed random walks in kx-ky-t space, combined with block-Hankel matrix completion for efficient reconstruction. Both retrospective and prospective CS accelerations were applied to13C MRSI experiments, including in vivo rodent brain and liver studies with administrations of hyperpolarized [1-13C] pyruvate at 7.0 Tesla (T) and [2-13C] dihydroxyacetone at 3.0 T, respectively. Results: In retrospective undersampling experiments using in vivo 7.0 T data, the proposed method preserved spectral, spatial, and dynamic fidelities with R2≥ 0.96 and ≥ 0.87 for pyruvate and lactate signals, respectively, 750-Hz spectral separation, and up to 6.6-fold accelerations. In prospective in vivo experiments, with 3.8-fold acceleration, the proposed method exhibited excellent spatial localization of metabolites and peak recovery for pyruvate and lactate at 7.0 T as well as for dihydroxyacetone and its metabolic products with a 4.5-kHz spectral span (140 ppm at 3.0 T). Conclusions: This study demonstrated the feasibility of a new CS approach to accelerate high spectral bandwidth MRSI experiments. Magn Reson Med 76:369–379, 2016. © 2016 Wiley Periodicals, Inc.-
dc.languageeng-
dc.relation.ispartofMagnetic Resonance in Medicine-
dc.subjectcompressed sensing-
dc.subjectHankel matrix completion-
dc.subjectMR spectroscopic imaging-
dc.subjectrandom blip gradients-
dc.subjecthyperpolarized carbon-13-
dc.subjectcalibrationless parallel imaging-
dc.titleAccelerated high-bandwidth MR spectroscopic imaging using compressed sensing-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/mrm.26272-
dc.identifier.pmid27228088-
dc.identifier.scopuseid_2-s2.0-84978371829-
dc.identifier.volume76-
dc.identifier.issue2-
dc.identifier.spage369-
dc.identifier.epage379-
dc.identifier.eissn1522-2594-
dc.identifier.isiWOS:000384997900001-
dc.identifier.issnl0740-3194-

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