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Mean strain-time curves for the normal strains Err, Ecc, and Ell, and for the shear strains Erc, Erl and Ecl for the mid-ventricular slice for all 5 normal volunteers. Data are shown separately for subendocardial, mid-wall and subepicardial layers, demonstrating the measurement of transmural strain gradients for some strains. Data are shown as mean ± standard deviation.
