Research Article
Computer-Aided Assessment of Tumor Grade for Breast Cancer in Ultrasound Images
Table 2
Performance of the proposed CAD system when different feature sets were used.
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Accuracy = (TP + TN)/(TP + TN + FP + FN); sensitivity = TP/(TP + FN); specificity = TN/(TN + FP); PPV = TP/(TP + FP); NPV = TN/(TN + FN), where TP is true positive (the number of high-grade tumors classified correctly); FN is false negative (the number of high-grade tumors classified incorrectly); FP is false positive (the number of low-grade tumors classified incorrectly); TN is true negative (the number of low-grade tumors classified correctly). |