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BioMed Research International
Volume 2013 (2013), Article ID 297895, 9 pages
http://dx.doi.org/10.1155/2013/297895
Research Article

Feasibility, Reproducibility, and Agreement between Different Speckle Tracking Echocardiographic Techniques for the Assessment of Longitudinal Deformation

1Department of Medical and Pediatric Sciences, University of Catania, Via Plebiscito 628, 95124 Catania, Italy
2Clinical Echocardiography, A.U.O. Policlinic “Vittorio Emanuele”, P.O. Rodolico, Via Santa Sofia 78, 95125 Catania, Italy
3Cardiology Unit, Ferrarotto Hospital, Via S. Citelli 6, 95124 Catania, Italy

Received 3 April 2013; Revised 4 August 2013; Accepted 20 August 2013

Academic Editor: Osama Soliman

Copyright © 2013 Sergio Buccheri et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background. Left ventricular (LV) longitudinal deformation can be assessed with new echocardiographic techniques like triplane echocardiography (3PE) and four-dimensional echocardiography (4DE). We aimed to assess the feasibility, reproducibility, and agreement between these different speckle-tracking techniques for the assessment of longitudinal deformation. Methods. 101 consecutive subjects underwent echocardiographic examination. 2D cine loops from the apical views, a triplane view, and an LV 4D full volume were acquired in all subjects. LV longitudinal strain was obtained for each imaging modality. Results. 2DE analysis of LV strain was feasible in 90/101 subjects, 3PE strain in 89/101, and 4DE strain in 90/101. The mean value of 2DE and 3PE longitudinal strains was significantly higher with respect to 4DE. The relationship between 2DE and 3PE derived strains ( ) was significantly higher ( , ) than that between 2DE and 4DE ( ) and that between 3PE and 4DE ( ; , ). The mean bias between 2DE and 4DE strains was while between 3PE and 4DE strains; the bias between 2DE and 3PE strain was of . Intraobserver and interobserver variabilities were acceptable among the techniques. Conclusions. Echocardiographic techniques for the assessment of longitudinal deformation are not interchangeable, and further studies are needed to assess specific reference values.