Table 1:
Patient and Treatment Characteristics
| Patient Characteristics | n (%) | |
|---|---|---|
| Age at diagnosis (median [IQR]) | 71 [60–93] | |
| Gender | Male | 8 (67) |
| Female | 4 (33) | |
| Race | Caucasian | 11 (92) |
| African American | 1 (8.3) | |
| Ethnicity | Non-Hispanic | 12 (100) |
| ECOG | 0 | 7 (59) |
| 1 | 4 (33) | |
| 2 | 1 (8) | |
| Smoking History | Current | 8 (67) |
| Former | 4 (33) | |
| Pack Years (mean [SD]) | 67.4 [30.5] | |
| Histology | Squamous Cell Carcinoma | 2 (17) |
| Adenocarcinoma | 9 (75) | |
| NSCLC, NOS | 1 (8) | |
| Lesion size (mean [SD]) | 2.0 [0.6] | |
| Location | RUL | 3 (25) |
| RML | 2 (17) | |
| LUL | 7 (58) | |
| Stage (AJCC 6th edition) | IA | 11 (92) |
| IB | 1 (8) | |
| Dose-fractionation RT used | 70.2 Gy/26 fx | 10 (83) |
| 54 Gy/3 fx | 2 (17) | |
| Pre-Tx PET SUV (mean [SD]) | 6.0 [2.5] | |
| Post-RFA PET SUV (mean [SD]) | 2.1 [2.0] | |
| Post-RT PET SUV (mean [SD]) | 2.5 [2.6] | |
| Response (RECIST) | CR | 2 (17) |
| PR | 6 (50) | |
| SD | 4 (33) | |
| Local Progression | No | 9 (75) |
| Yes | 3 (25) | |
| Regional Progression | No | 7 (58) |
| Yes | 5 (42) | |
| Distant Progression | No | 4 (33) |
| Yes | 8 (67) |
ECOG = Eastern Cooperative Oncology Group; RT = Radiotherapy; PET = Positron Emission Tomography