Fig. 5
An example was evaluated by visual and semi-quantitative parameters of I-PET4 as a poor prognosis group, and the prognosis was improved by intensive treatment. A 57-year-old woman diagnosed DLBCL by puncture for more than 2 weeks. Baseline 18F-FDG PET/CT showed intense glucose uptake in multiple systemic lymph nodes (mainly celiac lymph nodes, large arrow) on MIP (a). Axial images of abdomen region (b PET; c CT; d fusion) revealed an enlarged lymph nodes of size 60 × 50 mm and SUVmax(LLR) of 9.7 on the right side of the abdominal aorta (arrow). Interim 18F-FDG PET/CT showed intense glucose uptake in the right side of the abdominal cavity on MIP (e). Axial images of the abdomen region (f PET; g CT; h fusion) revealed a lymph node of 22 × 19 mm and SUVmax(LLR) of 5.9 in the mesentery (arrow). Evaluation of curative effect: visual analysis is PMR, ΔSUVmax(LLR) = 39.47%. After interim evaluation, the patient received autologous stem-cell transplantation (ASCT) and rituximab maintenance therapy. During the follow-up, the abdominal lesions disappeared and the prognosis was good. 18F-FDG PET/CT shows that the patient is in CMR state on MIP (i-m)