Minimization of Nyquist ghosting for echo-planar imaging at ultra-high fields based on a "negative readout gradient" strategy

van der Zwaag, Wietske; Marques, José P; Lei, Hongxia; Just, Nathalie; Kober, Tobias; Gruetter, Rolf

doi:10.1002/jmri.21951

Scientific article

English

Minimization of Nyquist ghosting for echo-planar imaging at ultra-high fields based on a "negative readout gradient" strategy

Contributorsvan der Zwaag, Wietske; Marques, José P; Lei, Hongxia; Just, Nathalie; Kober, Tobias; Gruetter, Rolf

Published inJournal of magnetic resonance imaging, vol. 30, no. 5, p. 1171-1178

Publication date2009

Abstract

To improve the traditional Nyquist ghost correction approach in echo planar imaging (EPI) at high fields, via schemes based on the reversal of the EPI readout gradient polarity for every other volume throughout a functional magnetic resonance imaging (fMRI) acquisition train.

Keywords

Algorithms
Animals
Brain/pathology
Brain Mapping/methods
Echo-Planar Imaging/methods
False Positive Reactions
Female
Humans
Image Processing, Computer-Assisted/methods
Magnetic Resonance Imaging/methods
Male
Oxygen/blood
Phantoms, Imaging
Rats

Affiliation entities

Faculté de médecine / Section de médecine clinique / Département de radiologie et informatique médicale

Research groups

CIBM (863)

Citation (ISO format)

VAN DER ZWAAG, Wietske et al. Minimization of Nyquist ghosting for echo-planar imaging at ultra-high fields based on a ‘negative readout gradient’ strategy. In: Journal of magnetic resonance imaging, 2009, vol. 30, n° 5, p. 1171–1178. doi: 10.1002/jmri.21951

Article (Published version)

Identifiers

PID : unige:32953
DOI : 10.1002/jmri.21951
PMID : 19856451

Journal ISSN1053-1807

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Minimization of Nyquist ghosting for echo-planar imaging at ultra-high fields based on a "negative readout gradient" strategy

To improve the traditional Nyquist ghost correction approach in echo planar imaging (EPI) at high fields, via schemes based on the reversal of the EPI readout gradient polarity for every other volume throughout a functional magnetic resonance imaging (fMRI) acquisition train.

Technical informations