ESTRO 2024 - Abstract Book

S5585

RTT - Patient care, preparation, immobilisation and IGRT verification protocols

ESTRO 2024

From this preliminary study, it shows the consistency of the HN proton immobilization system. Due to the unique characteristic with proton irradiation, the Moldcare impacts the depth dose distribution. Hence, evaluation on the Moldcare was crucial for the staff to comprehend the importance on fabricating a good cushion to facilitate high precision proton beam delivery. A guideline to fabricate Moldcare cushion may potentially help the RTTs in making a more uniform and stable headrest for proton patients.

Keywords: proton, head and neck, immobilization

References:

1. Dukho, A. (2018). A comparative evaluation of two head and neck immobilization devices using verification film for head and neck cancer patients receiving radiation therapy at Ocean Road Cancer Institute (ORCI) aero-digestive tract. International Journal of Radiology and Radiation Oncology, 021–026. https://doi.org/10.17352/ijrro.000031 2. Gaikwad, U., Mookaiah, M., Karthekeyan, S., Wakde, M., Noufal, M. P., Chilukuri, S., Sharma, D., Jalali, R., & Nangia, S. (2022). Standard operating procedure (SOP) for mould room practices and simulation of head neck cancer patients undergoing proton therapy. Technical Innovations & Patient Support in Radiation Oncology, 24, 48–53. https://doi.org/10.1016/j.tipsro.2022.09.003 3. Leech, M., Coffey, M., Mast, M., Moura, F., Osztavics, A., Pasini, D., & Vaandering, A. (2017). Estro acrop guidelines for positioning, immobilisation and position verification of head and neck patients for radiation therapists. Technical Innovations & Patient Support in Radiation Oncology, 1, 1–7. https://doi.org/10.1016/j.tipsro.2016.12.001

2563

Digital Poster

The application of marker-less positioning in esophageal radiotherapy patients

Xiuying Mai, Tong Wang, Yiling Wang, Xiaobo Jiang, Feng Chi

Sun Yat-sen University Cancer Center, Radiation Oncology, Guangdong, China

Purpose/Objective:

Tattoos and skin markings are used in our center as a positioning workflow. However, the loss of markings and permanent tattoos affects patient’s daily treatment and quality of life. We would also like to find out if marker-less positioning is accurate and consistent for other non-superficial tumours, hence we started from esophageal patients.

Material/Methods: