Parameters to identify eligible patients are as follows : ESTRO : > @ years , invasive ductal carcinoma/other favorable histology ( IDC ) , T@-@ ( @ cm ) , N@ , any hormone receptor status , M@ ; ASTRO : @ years , IDC , T@ , N@ , positive estrogen hormone receptor status , M@ ; TARGIT E `` elderly '' , risk adapted radiotherapy with IORT followed by external beam radiotherapy in case of risk factors in final histopathology , phase II : @ years , IDC , T@ , N@ , any hormone receptor status , M@ ; TARGIT C `` consolidation '' , risk adapted radiotherapy , phase IV : @ years , IDC , T@ , N@ , positive hormone receptor status , M@ ; TARGIT BQR `` boost quality registry '' : every age , every histology , T@-@ ( max .