Table 2.
Area under the receiver operating characteristic curve values obtained from MRMCROC method for three radiologists in predicting lung nodule calcification on conventional gray scale radiography (GSR) and dual-energy radiography with color-representation (DCR)
| Observer | Gray scale radiography | Dual-energy radiography with color-representation |
|---|---|---|
| 1 | 0.871 | 0.949 |
| 2 | 0.739 | 0.957 |
| 3 | 0.874 | 0.926 |
| Average | 0.828 | 0.944 |
The difference in area under the receiver operating characteristic curve values between GSR and DCR imaging was statistically significant (p = 0.044)
MRMCROC multi-reader, multi-case receiver operating characteristic