Lessons learned from the multicentre QA program in SBRT for perihilar cholangiocarcinoma: benchmark-case results from the STRONG II trial.
BACKGROUND AND PURPOSE SBRT for unresectable perihilar cholangiocarcinoma (pCCA) is technically challenging, yet delineation and planning guidelines remain limited. Within the STRONG II trial, we implemented a QA program to evaluate protocol compliance and harmonize treatment practices. MATERIALS AND METHODS Six cent...