ECHO and CMR images. In vivo echocardiographic images of infarcted heart taken from 2D parasternal long axis (A) and from serial consecutive parasternal short axis (B) and used to apply the ECHO pLAX and the ECHO pSAX methods, respectively. Both echocardiographic methods were used to calculate LV volumes and ejection fraction and were compared to CMR (C). Corresponding ex-vivo photographs of anterior and posterior walls of the left ventricle in corresponding animals are presented in the bottom of the panel. AW, anterior wall; FW, free wall; IVS, interventricular septum; LV, left ventricle; PW, posterior wall; HLA, horizontal long axis; MID-PAP, mid-papillary level; VLA, vertical long axis. *Indicates papillary muscles.