Pre-trial quality assurance of diffusion-weighted MRI for radiomic analysis and the role of harmonisation

•Mean ADC values are robust across different scanners with imaging protocol standardisation.•Radiomic features of ADC map in a homogeneous phantom show substantial variation between MRI systems, even after ComBat harmonisation.•Resampling to a smaller voxel size provides more repeatable and reproducible radiomic features than resampling to a larger voxel size.