Delineation of the left ventricular borders in the short axis plane in end-diastole and end-systole. Both the endocardial and epicardial borders were outlined manually for both ventricular volume and mass measurement (solid lines). Papillary muscle measurements were only included for mass measurements (dashed lines).
Cain et al. BMC Medical Imaging 2009 9:2 doi:10.1186/1471-2342-9-2