“…The imaging modalities studied were PWI ( n = 9) [ 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 ], conventional MRI ( n = 2) [ 63 , 64 ], DWI ( n = 1) [ 65 ], DWI+PWI [ 66 ], Digital Breast Tomography (DBT, n = 1) [ 67 ], PET/CT ( n = 1) [ 68 ] and standard 2D digital mammography (DMG, n = 1) [ 69 ]. Most studies focused on invasive breast cancer ( n = 13) [ 54 , 55 , 56 , 57 , 58 , 59 , 60 , 63 , 64 , 65 , 66 , 67 , 69 ], while three studies investigated non-invasive breast cancer types [ 61 , 62 , 68 ]. HER-2 was the most frequently investigated biomarker ( n = 10), and all studies showed some degree of linkage between HER-2 status and radiomic features (AUC = 0.65–0.95) [ 54 , 56 , 57 , 58 , 59 , 60 , 62 , 64 , 68 , 69 ].…”