Fig. 2

Layer-specific two-dimensional speckle tracking echocardiography-derived left ventricular longitudinal strain (LV-SL) curves on day 0 and day 468. The left curves represent the endocardial layer, the middle represent the whole layer, and the right represent epicardial layer. The whole, endocardial, and epicardial LV-SL on day 0 have already been below the normal range which established from 15 healthy cats, and were further decreased on day 468