Table 1 Patient and treatment characteristics (n = 15 patients)
Patients | % | |
|---|---|---|
Sex | ||
Female | 1 | 6.7 |
Male | 14 | 93.3 |
T-stage prior to RT | ||
T1a | 6 | 40.0 |
T1b | 4 | 26.7 |
T2 | 5 | 33.3 |
Smoking | ||
≥ 10 pack-years | 8 | 53.3 |
< 10 pack-years | 1 | 6.7 |
Never | 6 | 40.0 |
RT setting | ||
Additive | 2 | 13.3 |
Definitive | 13 | 86.7 |
Gantry beam angle | ||
30°/330° | 1 | 6.7 |
40°/320° | 6 | 40.0 |
50°/310° | 7 | 46.6 |
60°/320° | 1 | 6.7 |
Median | Range | |
|---|---|---|
Age prior to RT (years) | 68 | 35–83 |
KPS prior to RT (%) | 90 | 60–100 |
BMI prior to RT (kg/m²) | 25.9 | 18.4–30.4 |
BMI post RT (kg/m²) | 24.9 | 18.1–30.4 |
Total dose (Gy RBE) | 70 | 66–70 |
Single dose (Gy RBE) | 2.0 | 1.8–2.3 |
RT fractions | 35 | 30–35 |
Treatment time per fraction (min) | 6 | 4–9 |
PTV (ccm) | 63.2 | 16.0–183.9 |
CTV (ccm) | 22.9 | 3.4–128.4 |
GTV (ccm) | 1.8 | 0.4–7.4 |
Total number of scan spots | 4306 | 1236–11641 |
Maximum energy protons (MeV/u) | 109 | 91–127 |