Elimination of magnetic field foldover artifacts in MR images

Authors
Larkman, DJ Herlihy, AH Coutts, GA Hajnal, JV
Citation
Dj. Larkman et al., Elimination of magnetic field foldover artifacts in MR images, J MAGN R I, 12(5), 2000, pp. 795-797
Citations number
6
Categorie Soggetti
Radiology ,Nuclear Medicine & Imaging
Journal title
JOURNAL OF MAGNETIC RESONANCE IMAGING
ISSN journal
10531807 → ACNP
Volume
12
Issue
5
Year of publication
2000
Pages
795 - 797
Database
ISI
SICI code
1053-1807(200011)12:5<795:EOMFFA>2.0.ZU;2-1
Abstract
Foldover artifacts arise when the same imaging frequency occurs both at a d esired location within a slice and at another location within the sensitive region of the radiofrequency (RF) coil. Foldover artifacts can be caused b y nonlinearity in the gradient system and by inhomogeneity in Bo. This stud y investigates an approach in which an extra RF receiver coil and a postpro cessing method are used to identify and remove foldover artifacts. (C) 2000 Wiley-Liss, Inc.