HomeQuestion
When treating adenocarinoma of the pancreas to 75 Gy in 25 fractions, what dose constraints do you use for small bowel, large bowel, and stomach?
1
1 Answers
Mednet Member
Radiation Oncology · Memorial Sloan-Kettering Cancer Center
|
| Planning Volumes | Definition | Doses by Fractionation Scheme | |
| 15-Fraction | 25-Fraction | |||
|
| Microscopic Extension PTV | CTV + 5mm (CTV = GTV + 1cm + CA, SMA, +/- porta hepatis, +/- splenic hilum basins) | 37.5Gy/15 | 45Gy/25 |
| High Dose PTV | GTV + 5mm margin excluding GI PRV expan... | |||