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Cardiac CINE imaging with IDEAL water‐fat separation and steady‐state free precession
Author(s) -
Reeder Scott B.,
Markl Michael,
Yu Huanzhou,
Hellinger Jeffrey C.,
Herfkens Robert J.,
Pelc Norbert J.
Publication year - 2005
Publication title -
journal of magnetic resonance imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.563
H-Index - 160
eISSN - 1522-2586
pISSN - 1053-1807
DOI - 10.1002/jmri.20327
Subject(s) - steady state free precession imaging , image quality , steady state (chemistry) , nuclear medicine , noise (video) , ideal (ethics) , signal to noise ratio (imaging) , magnetic resonance imaging , medicine , biomedical engineering , physics , computer science , radiology , artificial intelligence , image (mathematics) , optics , chemistry , philosophy , epistemology
Purpose to decompose multicoil CINE steady‐state free precession (SSFP) cardiac images acquired at short echo time (TE) increments into separate water and fat images, using an iterative least‐squares “Dixon” (IDEAL) method. Materials and Methods Multicoil CINE IDEAL‐SSFP cardiac imaging was performed in three volunteers and 15 patients at 1.5 T. Results Measurements of signal‐to‐noise ratio (SNR) matched theoretical expectations and were used to optimize acquisition parameters. TE increments of 0.9–1.0 msec permitted the use of repetition times (TRs) of 5 msec or less, and provided good SNR performance of the water‐fat decomposition, while maintaining good image quality with a minimum of banding artifacts. Images from all studies were evaluated for fat separation and image quality by two experienced radiologists. Uniform fat separation and diagnostic image quality was achieved in all images from all studies. Examples from volunteers and patients are shown. Conclusion Multicoil IDEAL‐SSFP imaging can produce high quality CINE cardiac images with uniform water–fat separation, insensitive to Bo inhomogeneities. This approach provides a new method for reliable fat‐suppression in cardiac imaging. J. Magn. Reson. Imaging 2005;22:44–52. © 2005 Wiley‐Liss, Inc.