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Titre du document / Document title

Estimation of the effective self-diffusion tensor from the NMR spin echo

Auteur(s) / Author(s)

BASSER P. J. ; MATTIELLO J. ; LEBIHAN D. ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

NIH, Warren G. Magnuson clin. cent., biomedical eng. instrumentation program, Bethesda MD 20892, ETATS-UNIS

Résumé / Abstract

The diagonal and off-diagonal elements of the effective self-diffusion tensor, Deff, are related to the echo intensity in an NMR spin-echo experiment. This relationship is used to design experiments from which Deff is estimated. This estimate is validated using isotropic and anisotropic media, i.e., water and skeletal muscle. It is shown that significant errors are made in diffusion NMR spectroscopy and imaging of anisotropic skeletal muscle when off-diagonal elements of Deff are ignored, most notably the loss of information needed to determine fiber orientation

Revue / Journal Title

Journal of magnetic resonance. Series B    ISSN  1064-1866 

Source / Source

1994, vol. 103, no3, pp. 247-254 (32 ref.)

Langue / Language

Anglais

Editeur / Publisher

Academic Press, Orlando, FL, ETATS-UNIS  (1993-1996) (Revue)

Mots-clés anglais / English Keywords

Muscular fiber

;

Microstructure

;

In vivo

;

Investigation method

;

Nuclear magnetic resonance imaging

;

Theoretical study

;

Algorithm

;

Experimental study

;

Biomedical engineering

;

Medical imagery

;

Mots-clés français / French Keywords

Fibre musculaire

;

Microstructure

;

In vivo

;

Méthode étude

;

Imagerie RMN

;

Etude théorique

;

Algorithme

;

Etude expérimentale

;

Génie biomédical

;

Imagerie médicale

;

Mots-clés espagnols / Spanish Keywords

Fibra muscular

;

Microestructura

;

In vivo

;

Método estudio

;

Imageria RMN

;

Estudio teórico

;

Algoritmo

;

Estudio experimental

;

Ingeniería biomédica

;

Imageneria medical

;

Localisation / Location

INIST-CNRS, Cote INIST : 14241 B, 35400004961935.0060

Nº notice refdoc (ud4) : 3296210



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