Table 1.
Demographics of multiple courses lung SBRT patients
| Gender | N=63 |
| Male | 29 |
| Female | 34 |
| Median age at tx | 72 (range 20-90) |
| Histology | N=63 |
| Breast cancer | 1 |
| Head & neck | 5 |
| Non small cell lung cancer | 40 |
| Small cell lung cancer | 1 |
| Melanoma | 4 |
| Renal cell carcinoma | 2 |
| Skin cancer | 1 |
| Colon ca | 6 |
| Thyroid | 1 |
| Sarcoma | 2 |
| Prior definitive lung external beam radiotherapy | N=63 |
| Yes | 18 |
| No | 45 |
| Central vs peripheral lesion | N=128 |
| Central | 47 |
| Peripheral | 81 |
| Mean tumour diameter (longest dimension) | N=128 |
| 1.8 cm (range 0.6 to 5.0 cm) | |
| Primary v recurrent v metastatic disease | N=128 |
| Primary lung tumour | 40 |
| Recurrence after primary SBRT for T1N0 disease | 25 |
| Metastatic lung nodules | 45 |
| Recurrence after EBRT for locally advanced lung cancer | 15 |
| Unknown | 3 |
| Prescription dose | N=128 |
| 40 Gy/5# | 3 |
| 45 Gy/9# | 1 |
| 45 Gy/5# | 1 |
| 48 Gy/4# | 30 |
| 50 Gy/10# | 2 |
| 50 Gy/5# | 43 |
| 54 Gy/3# | 43 |
| 57.5 Gy/5# | 1 |
| 60 Gy/3# | 5 |
| Number of sites treated per patient | N=63 |
| 1 | 12 |
| 2 | 42 |
| 3 | 6 |
| 4 | 3 |
| Number of SBRT courses per patient | N=63 |
| 1 (synchronous; 2 sites treated at once) | 29 |
| 2 | 28 |
| 3 | 6 |
| Response to treatment (based on imaging) | N=128 |
| CR | 21 |
| PR | 63 |
| Progression | 3 |
| SD | 26 |
| Unknown | 16 |
| Chemo given | N=63 |
| Yes | 17 |
| No | 46 |