ESTRO 2024 - Abstract Book

S1327

Clinical - Head & neck

ESTRO 2024

Conclusion:

This study has revealed that the clinical interpretation of a 70 Gy prescription can vary widely between centres. Each centre's experience and adherence to different dose prescription protocols, including the ICRU and RTOG standards, influence these variations. The dosimetric disparities are evident in the mean and near-minimum CTV doses, significantly affecting the interpretation of clinical trial outcomes, including the specification of dose de escalation strategies for HPV+ oropharynx cancer treatment. The lack of a standardised global approach to dose prescription for oropharynx cancer treatment has far-reaching consequences for patient care, research, and the potential for treatment de-escalation. This study highlights the importance of harmonising dose prescription standards to ensure consistent and optimised radiotherapy outcomes for patients worldwide.

Keywords: Oropharynx, dose prescription, real world data

1711

Digital Poster

Prognostic impact of posterior commissure involvement in early glottic cancer

Parveen Ahlawat, Sarthak Tandon, Sandeep Purohit, Akash R Bellige, Gerim Prasai, Sauharda Lohani, Apoorva Nayak, Aslam Najeem, Munish Gairola