Table 1 Dosimetric parameters (doses in Gy, based on dose-volume histograms)
Parameter | Median | Range |
|---|---|---|
CTV in cc | 142 | 10–1185 |
PTV in cc | 427 | 95–1950 |
Esophagus volume in cc | 25 | 11–62 |
Esophagus volume inside PTV in cc | 8.7 | 0–22 |
Maximum dose to esophagus | 39.1 | 1.8–52.1 |
Mean dose to esophagus | 15.3 | 0.7–37.0 |
Dose to 5 cc of esophagus | 30.0 | 1.2–51.0 |
Dose to 10 cc of esophagus | 22.0 | 0.0–51.0 |
Esophagus volume exposed to 20 Gy (V20) | 40 | 0–79 |
Esophagus volume exposed to 30 Gy (V30) | 24 | 0–73 |
Esophagus volume exposed to 35 Gy (V35) | 15 | 0–72 |
Esophagus volume exposed to 40 Gy (V40) | 0 | 0–60 |
Esophagus volume exposed to 50 Gy (V50) | 0 | 0–16 |