Figure 2d: Bland-Altman plots show comparison of manually derived left ventricular volumes with automatically derived volumes. The results are presented in plots for the endocardial (a) end-systolic (ESV) and (b) end-diastolic (ED) volumes, for the epicardial (c) end-systolic (ESV) and (d) end-diastolic (ED) volumes, and for (e) EF and (f) mass. Dashed lines show respective means of the volume differences, and dotted lines indicate ± 2 standard deviations (2SD).