How often should you re-plan interstitial brachytherapy for gynecologic malignancies?
Do you plan every fraction, every other fraction, or use one plan for the whole treatment?
Answer from: Radiation Oncologist at Community Practice
Ideally one should scan before each fraction to ensure needle position and account for changes in critical organ anatomy. That being said, because of logistic constraints we do QA before each fraction to check for needle displacement and if measurements are off by 2 mm or more, then we do rescanning...