Prognostic significance of interim 18F-FDG PET/CT SUV reduction associated with Ki67 in patients with diffuse large B-cell lymphoma

55%was revealed to be an indicator of shorter PFS（p = 0.019）.Either △SUVmax≤11.45 or Ki67>55%was defined as an indicator to poor outcome and scored 1 point.The PFS rate was 100%in patients scored 0 point,yet 0%in patients scored 2 points.PFS tended to be shorter along with the score getting higher（p = 0.006）.△SUVmax and Ki67 positive index were both of significance in DLBCL prognosis.The prognostic value may be confirmed when △SUVmax was accordant with Ki67.