Table 4.

Results of detecting infarcted left ventricular segments.

Patient number	Total LVa segments	Infarcted segments	TPb	TNc	FPd	FNe	Sensitivity (TPR)f = TP/(TP + FN)	1-Specificity (FPR)g = FP/(TN + FP)h
D1i	16	5	3	9	2	2	0.75	0.18
D2	16	2	1	13	1	1	0.5	0.07
D3	16	1	1	12	3	0	0.5	0.2
D4	16	1	1	14	1	0	1	0.06
D5	16	2	2	14	0	0	0.25	0
D6	16	3	3	12	1	0	1	0.07
D7	16	7	5	9	0	2	1	0
D8	16	6	6	8	2	0	0.66	0.2
D9	16	5	5	11	0	0	1	0
H1j	16	0	0	12	4	0	NaNk	0.25
H2	16	0	0	16	0	0	NaN	0

^aLV: left ventricular.

^bTP: true positives.

^cTN: true negatives.

^dFP: false positives.

^eFN: false negatives.

^fTPR: true-positive rate (sensitivity).

^gFPR: false-positive rate (1-specificity).

^hThe higher sensitivity and the lower (1-specificity) together determines the best result (eg, D7, D9, and H2).

ⁱD: diseased.

^jH: healthy.

^kNaN: not a number.