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Toward high‐resolution myocardial tagging
Author(s) -
Stuber Matthias,
Fischer Stefan E.,
Scheidegger M.B.,
Boesiger Peter
Publication year - 1999
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/(sici)1522-2594(199903)41:3<639::aid-mrm31>3.0.co;2-4
Subject(s) - heartbeat , resolution (logic) , cardiac cycle , computer science , magnetic resonance imaging , displacement (psychology) , nuclear magnetic resonance , echo planar imaging , planar , cardiac magnetic resonance , artificial intelligence , physics , medicine , radiology , cardiology , psychology , computer graphics (images) , computer security , psychotherapist
Magnetic resonance imaging with preceding tissue tagging is a robust method for assessing cardiac motion of the entire heartbeat cycle with a high degree of accuracy. One limitation of this technique, however, is the low resolution of the obtained displacement map of the labeled points within the myocardium. By a new tagging technique, which is based on the combination of two or more measurements of the same slice but with different grid positions, a highly improved resolution of cardiac motion data can be achieved. In combination with a multi‐heart‐phase echo‐planar imaging sequence, such images with doubled grid frequency can be acquired in two short breath‐hold periods. Magn Reson Med 41:639–643, 1999. © 1999 Wiley‐Liss, Inc.