ABC | Volume 113, Nº4, October 2019

Original Article Gil et al. LV function in HCM by Strain technique Arq Bras Cardiol. 2019; 113(4):677-684 This is an open-access article distributed under the terms of the Creative Commons Attribution License 28. Alcidi GM, Esposito R, Evola V, Santoro C, Lembo M, Sorrentino R, et al. Normal reference values of multilayer longitudinal strain according to age decades in a healthy population: A single-centre experience. Eur Heart J Cardiovasc Imaging. 2018;19(12):1390-6. 29. Reckefuss N, Butz T, Horstkotte D, Faber L. Evaluation of longitudinal and radial left ventricular function by two-dimensional speckle-tracking echocardiography in a large cohort of normal probands. Int J Cardiovasc Imaging. 2011;27(4):515-26. 30. Menting ME, McGhie JS, Koopman LP, Vletter WB, Helbing WA, van den Bosch AE, et al. Normal myocardial strain values using 2D speckle tracking echocardiography in healthy adults aged 20 to 72 years. Echocardiography. 2016;33(11):1665-75. 31. Taylor RJ, Moody WE, Umar F, Edwards NC, Taylor TJ, Stegemann B, et al. Myocardial strain measurement with feature-tracking cardiovascular magnetic resonance: normal values. Eur Heart J Cardiovasc Imaging. 2015;16(8):871-81. 684