Table 2

Evaluation of the tumour extraction algorithm without colour deconvolution in BCC histology slides

Tumours

Sensitivity (%)

Specificity (%)

PPV (%)

NPV (%)


Infiltrative

81.25

68.72

53.57

87.87


Superficial

98.46

74.20

27.34

99.78


Nodular

95.11

80.92

76.90

93.92


All

91.61

74.61

52.60

93.86


PPV: Positive Predictive Value = [True Positive Pixels/(True Positive Pixels + False Positive Pixels)] · 100%; NPV: Negative Predictive Value = [True Negative Pixels/(True Negative Pixels + False Negative Pixels)] · 100%; Sensitivity = [True Positive Pixels/(True Positive Pixels + False Negative Pixels)] · 100%; Specificity = [True Negative Pixels/(True negative Pixels + False Positive Pixels)] · 100%

Lesack and Naugler BMC Research Notes 2012 5:35   doi:10.1186/1756-0500-5-35

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