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Table 3 Test classification performance results obtained in Test 1 after using the total reflectance as an input feature

From: Automated classifiers for early detection and diagnosis of retinopathy in diabetic eyes

TR vs. FD

RNFL (eye/scans)

GCL + IPL (eye/scans)

INL (eye/scans)

OPL (eye/scans)

ONL + IS (eye/scans)

OS (eye/scans)

RPE (eye/scans)

TP

48/288

49/294

48/288

48/288

48/288

50/300

51/306

FN

6/36

5/30

6/36

6/36

6/36

4/24

3/18

TN

10/60

35/210

23/138

37/222

9/54

9/54

11/66

FP

33/198

8/48

20/120

6/36

34/204

34/204

32/192

PPV

0.59

0.86

0.71

0.89

0.59

0.60

0.61

Sensitivity

0.89

0.91*

0.89

0.89*

0.89

0.93

0.94

Specificity

0.23

0.81*

0.53

0.86*

0.21

0.21

0.26

  1. *denotes the intraretinal layer for which the sensitivity, specificity and PPV are greater than 80%.
  2. Sensitivity, specificity, predictive values (TP, FN, TN, FP) and positive predictive values (PPV) obtained when training the Bayesian radial basis function network using the total reflectance (TR) and fractal dimension (FD) as the input and target features, respectively.