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Titolo:
Optimization of residual water signal removal by HLSVD on simulated short echo time proton MR spectra of the human brain
Autore:
Cabanes, E; Confort-Gouny, S; Le Fur, Y; Simond, G; Cozzone, PJ;
Indirizzi:
Fac Med Marseille, Ctr Resonance Magnet Biol & Med, CNRS, UMR 6612, F-13005 Marseille, France Fac Med Marseille Marseille France F-13005 12, F-13005 Marseille, France
Titolo Testata:
JOURNAL OF MAGNETIC RESONANCE
fascicolo: 2, volume: 150, anno: 2001,
pagine: 116 - 125
SICI:
1090-7807(200106)150:2<116:OORWSR>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
SOLVENT SUPPRESSION; FREQUENCY-DOMAIN; H-1 SPECTRA; SPECTROSCOPY; QUANTIFICATION; KNOWLEDGE; INVIVO; PEAK;
Keywords:
STEAM localized proton spectroscopy; water signal removal; HLSVD method;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Physical, Chemical & Earth Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Cabanes, E Fac Med Marseille, Ctr Resonance Magnet Biol & Med, CNRS, UMR 6612, 27 Blvd Jean Moulin, F-13005 Marseille, France Fac Med Marseille 27 Blvd Jean Moulin Marseille France F-13005
Citazione:
E. Cabanes et al., "Optimization of residual water signal removal by HLSVD on simulated short echo time proton MR spectra of the human brain", J MAGN RES, 150(2), 2001, pp. 116-125

Abstract

Suppression of the residual water signal from proton magnetic resonance (MR) spectra recorded in human brain is a prerequisite to an accurate quantification of cerebral metabolites. Several postacquisition methods of residual water signal suppression have been reported but none of them provide a complete elimination of the residual water signal, thereby preventing reliable quantification of brain metabolites. In the present study, the elimination of the residual water signal by the Hankel Lanczos singular value decomposition method has been evaluated and optimized to provide fast automated processing of spectra. Model free induction decays, reproducing the proton signal acquired in human brain localized MR spectroscopy at short echo times (e.g., 20 ms), have been generated. The optimal parameters in terms of number of components and dimension of the Hankel data matrix allowing complete elimination of the residual water signal are reported. (C) 2001 Academic Press.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/01/20 alle ore 10:09:04