Differentiation between Treatment-Induced Necrosis and Recurrent Tumors in Patients with Metastatic Brain Tumors: Comparison among C-11-Methionine-PET, FDG-PET, MR Permeability Imaging, and MRI-ADC-Preliminary Results

摘要

BACKGROUND AND PURPOSE: In patients with metastatic brain tumors after gamma knife radiosurgery, the superiority of PET using C-11-methionine for differentiating radiation necrosis and recurrent tumors has been accepted. To evaluate the feasibility of MR permeability imaging, it was compared with PET using C-11-methionine, FDG-PET, and DWI for differentiating radiation necrosis from recurrent tumors.