Diagnostic accuracy of diffuse reflectance imaging for early detection of pre-malignant and malignant changes in the oral cavity: a feasibility study

Table 3 Diagnostic accuracies of DRIS in discriminating lesions

Lesion types	Diagnostic accuracies				Area under the ROC curve
	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)
Malignant Vs Normal	97	97	90	99	0.99
Pre-malignant Vs Normal	95	92	70	99	0.94
Pre-malignant Vs malignant	76	80	85	70	0.84
Malignant & Pre-malignant Vs Normal	92	95	90	96	0.97

PPV=positive predictive value, NPV=negative predictive value and ROC=receiver operator characteristics.

ISSN: 1471-2407