Table 1.
Patient, tumor and treatment characteristcs
| Characteristic | n (%) |
|---|---|
| Total number of patients/lesions | 130 (100%)/160 (100%) |
| Mean age in years | 71 (range: 40–92) |
| Male/female ratio | 77 (59%) / 53 (41%) |
| No. with COPD | 45 (35%) |
| Mean FEV1 (%) | 65 (range: 24–139) |
| Mean FEV1 (L) | 2 (range: 0.53–3.65) |
| Histological confirmation | 79 (61%) |
| Primary cancer patients/lesions | 81 (62%) / 86 (54%) |
| T1N0 | 53 |
| T2N0 | 19 |
| T3N0 | 5 |
| T1N1 | 4 |
| Recurrent tumor patients /lesions (n) | 23 (18%) / 35 (22%) |
| Lung metastasis patients /lesions (n) | 26 (20%) / 39 (24%) |
| Mean GTV volume (ml) | 11.5 (range: 0.6–86.5) |
| Mean PTV volume (ml) | 33.2 (range: 5.8–118.1) |
| Location of lesions: peripheral/central | 113 (71%) /47 (29%) |
| Mean total dose (Gy)/Mean no. of fractions | 60/3 fx (range: 40–60 / 3–5 fx) |
| Mean/median BED10Gy(Gy) | 151/180 Gy |
BED = mean biologically equivalent dose; COPD = chronic obstructive pulmonary disease; FEV1 = forced expiratory volume in 1 second; fx = fractions; GTV = gross tumour volume; PTV = planning target volume