Global Longitudinal Strain or Left Ventricular Twist and Torsion? Which Correlates Best with Ejection Fraction?
Arquivos Brasileiros de Cardiologia2017Vol. 109(1), pp. 23–29
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Márcio Silva Miguel Lima, Hector R. Villarraga, Maria Cristina Donadio Abduch, Marta F. Lima, Cecília Beatriz Bittencourt Viana Cruz, João Sbano, Mariana Callil Voos, Wilson Mathias, Jeane Mike Tsutsui
Abstract
GLS of the left ventricle have highly strong positive correlation with the classical parameter of ejection fraction, especially in cases with LV systolic impairment. Longitudinal strain rate also demonstrated a good correlation. GLS increments analysis of LV systolic function. On the other hand, although being a cornerstone of LV mechanics, twist and torsion have a weaker correlation with LV ejection, comparing to GLS.
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