ESTRO 2025 - Abstract Book

S956

Clinical – Head & neck

ESTRO 2025

Figure 2. Dose on laryngeal cartilages.

Conclusion: Initial results from this treatment planning study indicate that using MR-Linac for stereotactic ablative radiotherapy for early stage glottic cancer is a promising approach, achieving dose levels comparable to those reported for SBRT using non-coplanar VMAT.

Keywords: stereotactic radiotherapy, cT1-2 glottic cancer

References: Sher, D. J., et al. "Stereotactic ablative radiotherapy for T1-2 glottic larynx cancer: mature results from the phase II LT-SABR trial." International Journal of Radiation Oncology, Biology, Physics.

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Digital Poster Dose-Response Characteristics and Predictive Study of Radiation Dermatitis in the Neck Region during Nasopharyngeal Cancer Radiotherapy Haiyan Peng, Fu Jin, Jianfeng Li, Xiaojiao Wang, Xuechun Wang Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China Purpose/Objective: To evaluate the impact of dose factors on acute skin reactions in the neck region during adjuvant radiotherapy, particularly to explore the dose-response relationships of skin indicators such as skin color, moisture content, brightness, and elasticity, and to investigate predictive factors for dermatitis occurrence.

Material/Methods: A study was conducted on 52 patients with nasopharyngeal cancer and neck lymph node metastasis, who received