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Sensitivity of T1w radiomics features to resolution. Ratio of low-to-high (L:H) and medium-to-high (M:H) radiomic features using either (a) a single slice (2D) or (b) the whole tumour (3D) for the analysis. Line at unity indicates perfect agreement between lower resolution and high-resolution images. *denotes radiomic features whose mean ratio is significantly different from unity using a Student's t-test; #denotes radiomic features with CV > 20%.
