Table 2.

Summarization of main parameters.

Parameter	Value	Discussion
Middle slice (ms)	$\frac{\text{total slice}}{\text{2}}$	No influence on the algorithm
Jump factor (J)	J > 2.5	(1) Less than 2.5: LV volume will be underestimated. (2) More than 2.5: LV volume will be overestimated.
Mass center displacement (D)	D > 6 pixels	(1) Less than 6: the slice with close myocardium is defined as the basal slice, which will result in the underestimated LV volume. (2) More than 6: the basal slice without close myocardium cannot be detected, which will result in the overestimated LV volume.

Note: “J” and “D” are empirically parameters upon 30 deidentified cases.