Premium
View‐ordering in radial fast spin‐echo imaging
Author(s) -
Theilmann Rebecca J.,
Gmitro Arthur F.,
Altbach Maria I.,
Trouard Theodore P.
Publication year - 2004
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.20031
Subject(s) - streaking , fast spin echo , radial line , nuclear magnetic resonance , fourier transform , echo (communications protocol) , radial velocity , physics , echo time , motion (physics) , pulse sequence , computer science , artificial intelligence , computer vision , optics , magnetic resonance imaging , radiology , medicine , computer network , stars , quantum mechanics
Radial MRI sequences are frequently used to obtain images with reduced sensitivity to motion. To decrease imaging time, multiple spin‐echo acquisitions can be incorporated into radial sequences. In this case, different radial lines of Fourier data have different TE times and the resulting images can contain streaking artifacts due to T 2 decay. The streaking is not only dependent on the T 2 of the object and the timing of the data acquisition, but also on the order in which radial lines are collected (view order). The view ordering can easily be controlled to minimize artifacts due to T 2 decay as well as motion. Four view‐ordering techniques are presented and evaluated for the radial FSE sequence. Magn Reson Med 51:768–774, 2004. © 2004 Wiley‐Liss, Inc.