ESTRO 2025 - Abstract Book

S3019

Physics - Image acquisition and processing

ESTRO 2025

Conclusion: We observed a shrinkage of the parotid glands over the course of radiotherapy, with a higher radiotherapy dose associated with increased shrinkage. There was no systematic change in intensities on the bSSFP images. For the shrinkage of the submandibular glands, no dose effect was observed. However, intensity change was correlated to the delivered dose, which may indicate functional changes. The lack of correlation between intensity changes and volume changes implies that they provide distinct information.

Keywords: MR guided RT, head & neck cancer, salivary glands

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