| Correction of field inhomogeneity effects on limited k-space MRSI data using anatomical constraints. | |
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MedLine Citation:
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PMID: 21097201 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Magnetic field inhomogeneity is a long-standing problem in magnetic resonance imaging (MRI) and spectroscopic imaging (MRSI). Specifically, in MRSI, field inhomogeneity, if not corrected, can cause frequency shifts, line broadening, and lineshape distortions in the spectral peaks. This paper addresses the problem of correcting the field inhomogeneity effects on limited k-space MRSI data. A penalized maximum-likelihood method is proposed, which enables the use of anatomical constraints for improving the correction performance with only limited k-space data. Simulation results are shown to demonstrate the effectiveness of the proposed method. |
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Authors:
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Xi Peng; Hien Nguyen; Justin Haldar; Diego Hernando; Xian-Pei Wang; Zhi-Pei Liang |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference Volume: 1 ISSN: 1557-170X ISO Abbreviation: Conf Proc IEEE Eng Med Biol Soc Publication Date: 2010 |
Date Detail:
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Created Date: 2010-11-24 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101243413 Medline TA: Conf Proc IEEE Eng Med Biol Soc Country: United States |
Other Details:
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Languages: eng Pagination: 883-6 Citation Subset: IM |
Affiliation:
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School of Electronic Information, Wuhan University, 430079, China. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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