Systolic endocardial and epicardial (a) circumferential (b) longitudinal (c) and radial strains estimated from DENSE displacement fields and meshfree RPIM strain analysis methodology in non-ischemic, non-valvular dilated cardiomyopathy patients. Abbreviations: A: anterior, AL: anterolateral, AS: anteroseptal, P: posterior, PL: posterolateral, PS: posteroseptal.