Table 8:

Z-value for sensitivity and specificity of conventional and digital radiography for detection of lesions

Receptor	Diagnostic value (%)
	Sensitivity	Specificity
Film with 60 kVp versus 70 kVp	1.3	0.0
PSP with 60 kVp versus 70 kVp	0.26	0.0
PSP with 60 kVp versus film with 60 kVp	0.99	2.76
PSP with 70 kVp versus film with 70 kVp	2.21	2.76
PSP with 60 kVp versus film with 70 kVp	2.27	2.76
PSP with 70 kVp versus film with 60 kVp	0.72	2.76
CCD with 60 kVp versus 70 kVp	0.7	1.31
CCD with 60 kVp versus film with 60 kVp	0.7	4.25
CCD with 70 kVp versus film with 70 kVp	0.0	3.03
CCD with 60 kVp versus PSP with 60 kVp	1.65	1.31
CCD with 70 kVp versus PSP with 70 kVp	2.12	0.0