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MR assessment of regional myocardial mechanics
Author(s) -
Simpson Robin M.,
Keegan Jennifer,
Firmin David N.
Publication year - 2013
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.23756
Subject(s) - computer science , principal (computer security) , focus (optics) , function (biology) , displacement (psychology) , measure (data warehouse) , sequence (biology) , data mining , physics , optics , psychology , genetics , evolutionary biology , psychotherapist , biology , operating system
Regional myocardial function can be measured by several MR techniques including tissue tagging, phase velocity mapping, and more recently, displacement encoding with stimulated echoes (DENSE) and strain encoding (SENC). Each of these techniques was developed separately and has undergone significant change since its original implementation. As a result, in the current literature, the common features and the differences between the techniques and what they measure are often unclear and confusing. This review article delivers an extensively referenced introductory text which clarifies the current methodology from the starting point of the Bloch equations. By doing this in a consistent way for each method, the similarities and differences between them are highlighted. In addition, their capabilities and limitations are discussed, together with their relative advantages and disadvantages. While the focus is on sequence design and development, the principal parameters measured by each technique are also summarized, together with brief results, with the reader being directed to the extensive literature on data processing and clinical applications for more detail. J. Magn. Reson. Imaging 2013;37:576–599. © 2012 Wiley Periodicals, Inc.