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Titolo:
Comparison of navigator echo and centroid corrections of image displacement induced by static magnetic field drift on echo planar functional MRI
Autore:
Liu, HL; Kochunov, P; Lancaster, JL; Fox, PT; Gao, JH;
Indirizzi:
Univ Texas, Hlth Sci Ctr, Res Imaging Ctr, San Antonio, TX 78284 USA Univ Texas San Antonio TX USA 78284 maging Ctr, San Antonio, TX 78284 USA
Titolo Testata:
JOURNAL OF MAGNETIC RESONANCE IMAGING
fascicolo: 2, volume: 13, anno: 2001,
pagine: 308 - 312
SICI:
1053-1807(200102)13:2<308:CONEAC>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
REGISTRATION; INTERPOLATION; VALIDATION;
Keywords:
MRI; functional MRI; navigator echo; motor; artifacts;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
14
Recensione:
Indirizzi per estratti:
Indirizzo: Gao, JH Univ Texas, Hlth Sci Ctr, Res Imaging Ctr, 7703 Floyd Curl Dr, SanAntonio, TX 78284 USA Univ Texas 7703 Floyd Curl Dr San Antonio TX USA 78284 X 78284 USA
Citazione:
H.L. Liu et al., "Comparison of navigator echo and centroid corrections of image displacement induced by static magnetic field drift on echo planar functional MRI", J MAGN R I, 13(2), 2001, pp. 308-312

Abstract

Image displacement caused by static magnetic field drift may result in serious edge artifacts in echo-planar functional magnetic resonance imaging (MRI). We compared navigator echo and centroid methods for correcting the artifacts for phantom and in vivo studies. A motor-stimulation fMRI study was performed to demonstrate the possible effects due to the displacement. The navigator echo method was shown to be the superior technique for the correction of image displacement by effectively eliminating edge artifacts, resulting in improved functional maps. (C) 2001 Wiley-Liss, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 18/01/20 alle ore 13:04:51