Table 4.
Subgroup analysis of tumors by location. Repeatability of ADC measurements in the first and second acquisition evaluated by intraclass correlation coefficients (ICC).
| Upper lunga |
Mid lungb |
Lower lungc |
||||
|---|---|---|---|---|---|---|
| Reader 1 | Reader 2 | Reader 1 | Reared 2 | Reader 1 | Reader 2 | |
| Free-breathing | 0.98 (0.96−0.99) | 0.98 (0.96−0.99) | 0.91 (0.73−0.97) | 0.93 (0.79−0.98) | 0.90 (0.68−0.97) | 0.93 (0.78−0.98) |
| Respiratory-triggered | 0.98 (0.96−0.99) | 0.99 (0.97−0.99) | 0.93 (0.79−0.98) | 0.96 (0.90−0.99) | 0.89 (0.66−0.97) | 0.72 (0.16−0.91) |
Data in parenthesis are 95% confidence interval.
a
Tumors in the upper lung, above the carina.
b
Tumors in the mid lung, between the carina and the pulmonary veins.
c
Tumors in the lower lung, below the pulmonary veins.