Characteristics | Value |
---|---|
Age (years) | Â |
  Median | 78 |
  Range | 47-90 |
Gender (n) | Â |
  Male | 74 |
  Female | 35 |
Histology (n) | Â |
  Adenocarcinoma | 65 |
  Squamous cell carcinoma | 29 |
  Large cell carcinoma | 1 |
  Unclassified NSCLC | 8 |
  Histologically unproved | 6 |
Tumor size (mm) | Â |
  Median | 22 |
  Range | 7-65 |
Tumor site (n) | Â |
  Upper lobe | 50 |
  Middle lobe | 13 |
  Lower lobe | 46 |
T stage (n) | Â |
  T1a | 47 |
  T1b | 32 |
  T2 | 30 |
FDG-PET before SBRT (n) | Â |
  yes | 71 |
  no | 38 |
Dose prescription (n) | Â |
  48Gy/4fr at isocenter | 30 |
  40Gy/4fr to the 95% volume of PTV | 79 |