Single-scan quantitative T2* methods with susceptibility artifact reduction. - Inserm - Institut national de la santé et de la recherche médicale
Article Dans Une Revue NMR in Biomedicine Année : 2006

Single-scan quantitative T2* methods with susceptibility artifact reduction.

Résumé

Two imaging methods, MSSAVE (Multiple echo SubSlice AVEraging imaging), based on sub-slice averaging and MGESEPI (Multiple echo Gradient-Echo Slice-Excitation Profile Imaging), based on over-sampling in the slice direction, are proposed for single-scan quantitative T(2)* evaluation with susceptibility artifact compensation. Their potentials in terms of sensitivity, minimum performance time, susceptibility artifact reduction and T(2)* quantitation quality, were compared with existing single-scan methods such as classical FLASH two- or three-dimensional or z-shimmed methods both in vitro and in vivo in normal rat brain. MGESEPI offered good quality T(2)* maps nearly free of artifacts but required a long acquisition time. MSSAVE was faster, but at the expense of reduced artifact compensation and the achievable T(2)* quantitation quality.

Dates et versions

inserm-00129099 , version 1 (05-02-2007)

Identifiants

Citer

Florence Franconi, Pierre Mowat, Laurent Lemaire, Pascal Richomme, Jean-Jacques Le Jeune. Single-scan quantitative T2* methods with susceptibility artifact reduction.. NMR in Biomedicine, 2006, 19 (5), pp.527-34. ⟨10.1002/nbm.1014⟩. ⟨inserm-00129099⟩

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