Article (Scientific journals)
The value of 2D strain imaging during stress testing
Moonen, Marie; Lancellotti, Patrizio; Zacharakis, Dimitrios et al.
2009In Echocardiography, 26 (3), p. 307
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Keywords :
dobutamine stress echocardiography; exercise echocardiography; ischemic cardiomyopathy; ischemic heart disease; strain; strain rate imaging
Abstract :
[en] Stress echocardiography is increasingly used but its major limitation is the subjective interpretation of wall motion changes requiring experience. Speckle tracking enables simultaneous evaluation of radial, longitudinal, and circumferential myocardial deformation. Recently, two-dimensional (2D) strain has been found to be as reliable as sonomicrometry for the assessment of left ventricular (LV) regional function. In the presence of inducible ischemia, longitudinal and circumferential abnormalities preceed the decrease in radial deformation. Optimal cutoffs have been obtained from 2D strain rate (SR) at peak dobutamine stress to predict coronary artery disease. However, 2D strain rate does not yet provide incremental accuracy to visual interpretation by experts. Speckle tracking strain could be useful to better identify contractile reverse and biphasic response of viable myocardium but there are not yet clinical studies published in this setting. Preliminary results suggest that 2D strain obtained during exercise could be useful in asymptomatic patients with severe aortic stenosis or organic mitral regurgitation (MR). In conclusion, the reliability and clinical importance of 2D strain during stress will be specified by further investigations.
Research center :
Département de cardiologie
Disciplines :
Cardiovascular & respiratory systems
Author, co-author :
Moonen, Marie ;  Université de Liège - ULiège > Département des sciences cliniques > Cardiologie - Pathologie spéciale et réhabilitation
Lancellotti, Patrizio  ;  Centre Hospitalier Universitaire de Liège - CHU > Cardiologie
Zacharakis, Dimitrios
Pierard, Luc ;  Université de Liège - ULiège > Département des sciences cliniques > Cardiologie - Pathologie spéciale et réhabilitation
Language :
English
Title :
The value of 2D strain imaging during stress testing
Publication date :
March 2009
Journal title :
Echocardiography
ISSN :
0742-2822
eISSN :
1540-8175
Publisher :
Future Pub Co, Armonk, United States - New York
Volume :
26
Issue :
3
Pages :
307
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Available on ORBi :
since 27 April 2009

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