Viabilidade e Speckle-Tracking

Assessment of Myocardial Viability at Dobutamine Echocardiography by Deformation Analysis Using Tissue Velocity and Speckle-Tracking
J Am Coll Cardiol Img, 2010; 3:121-131
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Objectives: Comparison of myocardial tissue-velocity imaging (TVI) and speckle-tracking echocardiography (STE) for prediction of viability at dobutamine echocardiography (DbE).
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Conclusions: Combination of TVI or STE methods with DbE can predict viability, with TVI strain and SR at LDD being the most accurate. TVI measures can predict viability in both anterior and posterior circulations, but STE measurements predict viability only in the anterior circulation.
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Apesar de racionalmente ser superior, o Speckle-Tracking não comprovou sua superioridade nesse estudo de viabilidade.Talvez a saída seja usar os dois, sempre.