ESTRO 2025 - Abstract Book

S3816

Physics - Radiomics, functional and biological imaging and outcome prediction

ESTRO 2025

Conclusion: This multi-centre study examined ADC values derived from longitudinal DWI collected using a 1.5 T MRI-Linac. The ADC variation across DWI sequences was relatively small, demonstrating feasibility of multi-centre investigations of DWI acquired on the MRI-Linac. We observed ADC changes during treatment larger than repeatability coefficients of 10.0-17.9% reported in other studies on the 1.5T MRI-Linac [5], suggesting that longitudinal DWI can