Improved reconstruction for MR spectroscopic imaging.

Improved reconstruction for MR spectroscopic imaging. Research Abstract Details 

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Improved reconstruction for MR spectroscopic imaging. Abstract Text:

Yufang Bao,Andrew A Maudsley,

Sensitivity limitations of in vivo magnetic resonance spectroscopic imaging (MRSI) require that the extent of spatial-frequency (k-space) sampling be limited, thereby reducing spatial resolution and increasing the effects of Gibbs ringing that is associated with the use of Fourier transform reconstruction. Additional problems occur in the spectral dimension, where quantitation of individual spectral components is made more difficult by the typically low signal-to-noise ratios, variable lineshapes, and baseline distortions, particularly in areas of significant magnetic field inhomogeneity. Given the potential of in vivo MRSI measurements for a number of clinical and biomedical research applications, there is considerable interest in improving the quality of the metabolite image reconstructions. In this report, a reconstruction method is described that makes use of parametric modeling and MRI-derived tissue distribution functions to enhance the MRSI spatial reconstruction. Additional preprocessing steps are also proposed to avoid difficulties associated with image regions containing spectra of inadequate quality, which are commonly present in the in vivo MRSI data.

Improved reconstruction for MR spectroscopic imaging. Publishing Authors By Initials

Y Bao,AA Maudsley,

For similar investigative techniques: epidemiologic methods: statistics as topic: sensitivity and specificity research abstracts see: investigative techniques: epidemiologic methods: statistics as topic: sensitivity and specificity research

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Improved reconstruction for MR spectroscopic imaging. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: IEEE transactions on medical imaging

VOLUME: 26

Page Numbers: 686-95

Journal Abbreviation:

ISSN: 0278-0062

DAY: 3

MONTH: May

YEAR: 2007

Improved reconstruction for MR spectroscopic imaging. Information

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LANGUAGE: eng

NlmUniqueID: 8310780

Improved reconstruction for MR spectroscopic imaging. Keywords Mesh Terms:

KEYWORDS: Sensitivity and Specificity

MESH TERMS: methods

Chemical & Substance for Abstract: Improved reconstruction for MR spectroscopic imaging. Information

Substance Name: Biological Markers

Registry Number: 0

Grant and Affiliation Information for Improved reconstruction for MR spectroscopic imaging.

AFFILIATION: MR Center (R308), 1115 NW 14th Street, Department of Radiology, Miller School of Medicine, University of Miami, Miami, FL 33136, USA. ybao2@med.miami.edu

Country: United States

AGENCY: United States NINDS

GRANT: R01 NS041946

ACRONYM: NS

MEDLINETA: IEEE Trans Med Imaging

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