Table 1.
Patients’ clinical characteristics
| Characteristic | All (n = 32) | PSPT (n = 16) | IMRT (n = 16) |
|---|---|---|---|
| ART status, no. | |||
| With ART | 16 | 8 | 8 |
| No ART | 16 | 8 | 8 |
| 4DCT sets per patient, median (range) | 7 (2–7) | 7 (7–7) | 6.5 (2–7) |
| Sex, no. | |||
| Male | 19 | 11 | 8 |
| Female | 13 | 5 | 8 |
| Age, median (range), years | 64 (43–78) | 64 (43–76) | 62 (47–78) |
| Disease stage, no. | |||
| IV | 5 | 1 | 4 |
| IIIB | 21 | 12 | 9 |
| IIIA | 5 | 2 | 3 |
| IIA | 1 | 1 | 0 |
| Target volume, median (range), cm3 | |||
| GTV | 221.9 (12.2–686.6) | 127.1 (22.7–673.7) | 280.9 (12.2–686.6) |
| CTV | 446.3 (120.9–1329.3) | 398.7 (131.7–1329.3) | 558.2 (120.9–1245.7) |
IMRT intensity-modulated (photon) radiation therapy, PSPT passive-scattering proton therapy, GTV gross tumor volume, CTV clinical target volume, ART adaptive radiotherapy