Ultrasound-Based IHC4-Associated Radiomic Model for Predicting Late Recurrence in ER-Positive Breast Cancer: A Multicenter Retrospective Study.
OBJECTIVES This study aimed to develop and validate an ultrasound-based IHC4-associated radiomic model for predicting late recurrence in ER-positive breast cancer and to evaluate its potential to support risk stratification and guide decisions on extended endocrine therapy. METHODS In this retrospective multicenter s...