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Table 5 Confusion matrix of keratoconus detection by LDA, optimized RF (DKI), CBI and TBI on validation dataset

From: Development of a classification system based on corneal biomechanical properties using artificial intelligence predicting keratoconus severity

 

Reference diagnosis (healthy – KC)

  
 

Healthy

KC

Sn/Sp

Accuracy

Final LDA

Healthy

31

7

93%/94%

93%

KC

2

86

DKI

Healthy

30

6

94%/91%

93%

KC

3

87

CBI

Healthy

31

11

88%/94%

90%

KC

2

82

TBI

Healthy

32

0

100%/97%

99%

KC

1

93

  1. CBI Corvis biomechanical index; DKI Dresden keratoconus index based on optimized RF model; KC keratoconus; LDA linear discriminant analysis; Sn sensitivity; Sp specificity; TBI tomographic and biomechanical index. Bold signifies correct prediction by LDA or RF model