List of stable radiomic features not statistically different if extracted using one segment layer at a time or considering the whole tumour volume in CT images of the oesophagus.

In bold, common features among three cohorts considered that showed to be stable and dimensionality and contrast agent independent. GLCM, grey level co-occurrence matrix; GLRLM, grey level run length matrix; GLSZM, grey level size zone matrix; GLDZM, grey level distance zone matrix; NGTDM, neighbourhood grey tone difference matrix; *, feature computed with merging.