Table 3.

Diagnostic Performances of the CNN model evaluated in slice-based and case-based method.

Parameter	Slice-based	case-based 1*	case-based 2*	case-based 3*
Accuracy	90.3%	80.4%	78.0%	81.1%
Specificity	79.0%	40.5%	47.6%	59.5%
Sensitivity	96.2%	100.0%	92.9%	91.8%
Positive predictive value	89.8%	77.3%	78.2%	82.1%
Negative predictive value	91.6%	100.0%	76.9%	78.1%

*case-based 1: As long as one slice is positive, the lesion is classified as malignant;

case-based 2: At least two or more slices are positive, the lesion is classified as malignant; case-based 3: At least three or more slices are positive, the lesion is classified as malignant.