Table 2 Comparison of the absolute percentages of the CT and MRI pneumonitis score at 3, 6 and 12 months after the end of treatment. After 3 and 12 months there was a very good correlation. However, there was only a moderate correlation after 6 months. Overall, the score on MRI tends to be slightly lower than in the corresponding CT. Absolute frequencies are written in parenthesis behind the corresponding percentage value
Pneumonitis Score 3-months follow up | Pneumonitis Score 6-months follow up | Pneumonitis Score 12-months follow up | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Percentage of grand total | MRI 0 | MRI 1 | MRI 2 | MRI 3 | MRI 0 | MRI 1 | MRI 2 | MRI 3 | MRI 0 | MRI 1 | MRI 2 | MRI 3 |
CT 0 | 35.71 (5) | 7.14 (1) | 0.00 (0) | 0.00 (0) | 10.00 (1) | 0.00 (0) | 0.00 (0) | 0.00 (0) | 33.33 (2) | 0.00 (0) | 0.00 (0) | 0.00 (0) |
CT 1 | 7.14 (1) | 7.14 (1) | 0.00 (0) | 0.00 (0) | 0.00 (0) | 10.00 (1) | 0.00 (0) | 0.00 (0) | 0.00 (0) | 0.00 (0) | 0.00 (0) | 0.00 (0) |
CT 2 | 0.00 (0) | 0.00 (0) | 14.29 (2) | 0.00 (0) | 0.00 (0) | 10.00 (1) | 20.00 (2) | 0.00 (0) | 0.00 (0) | 0.00 (0) | 16.67 (1) | 0.00 (0) |
CT 3 | 0.00 (0) | 0.00 (0) | 28.57 (4) | 0.00 (0) | 0.00 (0) | 20.00 (2) | 20.00 (2) | 10.00 (1) | 0.00 (0) | 0.00 (0) | 16.67 (1) | 33.33 (2) |