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Resolution enhancement in lung 1 H imaging using parallel imaging methods
Author(s) -
Heidemann R.M.,
Griswold M.A.,
Kiefer B.,
Nittka M.,
Wang J.,
Jellus V.,
Jakob P.M.
Publication year - 2003
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/mrm.10349
Subject(s) - resolution (logic) , image resolution , single shot , nuclear magnetic resonance , temporal resolution , acceleration , magnetic resonance imaging , nuclear medicine , computer science , physics , artificial intelligence , medicine , radiology , optics , classical mechanics
Resolution in 1 H lung imaging is limited mainly by the acquisition time. Today, half‐Fourier acquisition single‐shot turbo spin‐echo (HASTE) sequences, with short echo time (TE) and short interecho spacing (T inter ) have found increased use in lung imaging. In this study, a HASTE sequence was used in combination with a partially parallel acquisition (PPA) strategy to increase the spatial resolution in single‐shot 1 H lung imaging. To investigate the benefits of using a combination of single‐shot sequences and PPA, five healthy volunteers were examined. Compared to conventional imaging methods, substantially increased resolution is obtained using the PPA approach. Representative in vivo 1 H lung images acquired with a HASTE sequence in combination with the generalized autocalibrating partially parallel acquisition (GRAPPA) method, up to an acceleration factor of three, are presented. Magn Reson Med 49:391–394, 2003. © 2003 Wiley‐Liss, Inc.