[Prognostic Value of Interim PET/CT in 227 Patients of DLBCL].

Objective: To investigate the prognostic evaluation value of fluorodeoxyglucose (FDG) interim positron emission tomography/computed tomography (PET/CT) for diffuse large B cell lymphoma (DLBCL).

Methods: Two hundred and twenty-seven patients with pathologically diagnosed DLBCL underwent 18F-FDG scans at baseline and before 3 cycles of a rituximab-containing chemotherapy regimen. The Visual Deauville score (DS) and changes in maximum standard uptake values (ΔSUVmax) were calculated for tracer for the predominant lesion of each patient, for prediction of progression-free survival (PFS) and overall survival (OS) using Kaplan-Meier method and COX regression.