For example, computed tomography (CT) radiomic features from the Gray-Level Run Length Matrix in the tumour and peripheral ring, along with the minimum value in the tumour, have been associated with CD8 cell infiltration across a range of tumour types [8], and CT features related to tumour heterogeneity and compactness/sphericity have shown an association with survival in lung and head and neck cancer [2]. Here, CD8A is linked to neoplasm.