Table 3. Dice similarity coefficients for automatic segmentation of LV myocardium (per segment analysis).

Variables	Total (n=246)			Center 1 (n=180)			Center 2 (n=66)
	Mean ± SD	P value		Mean ± SD	P value		Mean ± SD	P value
Total	0.844±0.090	–		0.852±0.081	–		0.823±0.107	–
Sex		0.068			0.001			0.640
Male	0.855±0.083			0.874±0.042			0.823±0.116
Female	0.834±0.095			0.838±0.097			0.813±0.083
Group		0.482			0.581			0.924
Normal	0.840±0.095			0.849±0.091			0.823±0.101
Myocarditis	0.848±0.085			0.855±0.071			0.824±0.118
Slice		<0.001			<0.001			0.014
Apex	0.805±0.124	0.002*		0.815±0.120	0.004*		0.777±0.134	0.465*
Mid	0.850±0.065	0.129†		0.861±0.045	0.523†		0.821±0.096	0.362†
Base	0.877±0.045	<0.001‡		0.880±0.037	<0.001‡		0.870±0.064	0.011‡

*, P value for comparison between the apex and mid slices; ^†, P value for comparison between mid and base slices; ^‡, P value for comparison between the base and apex slices. LV, left ventricular; SD, standard deviation.