Sasada S, et al. - In this work, the capability of dedicated breast PET (DbPET) to predict residual primary tumors after neoadjuvant chemotherapy (NAC) compared with whole-body PET (WBPET) was ascertained. In this study, DbPET proved superior regarding accuracy in detecting residual primary tumors after NAC, particularly intraductal carcinoma. Compared with standardized uptake value, tumor-to-normal tissue ratio was the better parameter for pathological evaluation.