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Figure 4 The relationship between the anisotropic ratio (CV_L/CV_T) and the width of the crista terminalis (CT) gap. The distribution of the anisotropic ratio of longitudinal/transverse conduction velocities (Y-axis) and the width of crista gap (X-axis) are plotted, showing the inverse relationship between anisotropic ratio and the width of the CT gap. CV_L = longitudinal conduction velocity; CV_T = transverse conduction velocity.