Journal of Neuro-Oncology
Pathology-validated structural and physiologic habitat imaging for differentiating radiation necrosis from tumor recurrence in brain metastases
Abstract Purpose Differentiating tumor recurrence from radiation necrosis (RN) after stereotactic radiosurgery (SRS) remains a major diagnostic challenge in brain metastasis. We aimed to validate established MRI-based tumor habitat analysis for distinguishing tumor from RN in an independent cohort with histopathological ground truth. Materials and methods This retrospective study included 104 patients (104 lesions) with pathologically confirmed recurrent metastatic tumors ( n = 68) or RN ( n = 36) who underwent str …