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Table 2 Performance metrics of AI-based models at different magnifications

From: Leveraging artificial intelligence to predict ERG gene fusion status in prostate cancer

Magnification

AUC

TP

FP

TN

FN

Sensitivity

Specificity

PPV

NPV

Accuracy

F1 score

Cut-off

10 ×

0.82

45

13

58

15

75.0%

81.7%

77.6%

79.5%

78.6%

0.78

0.4

20 ×

0.84

45

12

59

15

75.0%

83.1%

78.9%

79.7%

79.4%

0.79

0.5

40 ×

0.85

45

13

58

15

75.0%

81.7%

77.6%

79.5%

78.6%

0.78

0.35

  1. AUC Area under curve in receiver operator characteristics curve, TP True positive (correctly classified as ERG-positive), FP False positive (incorrectly classified as ERG-positive), TN True negative (correctly classified as ERG-negative), FN False negative (incorrectly classified as ERG-negative), PPV Positive predictive value, NPV Negative predictive value, Cut-off indicates cut-off value of proportion of positive patches that gives best accuracy