Published in:
01-03-2014 | Original Paper
The rate of reduction in the maximum standardized uptake value from the initial to the post-R-CHOP therapy in positron emission tomography scan predicts disease progression in diffuse large B cell lymphoma patients
Authors:
Yoshimi Ishii, Naoto Tomita, Ukihide Tateishi, Yasufumi Ishiyama, Eri Yamamoto, Yukako Hattori, Maki Hagihara, Etsuko Yamazaki, Yoshiaki Ishigatsubo
Published in:
Medical Oncology
|
Issue 3/2014
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Abstract
[18F]fluorodeoxyglucose (18F-FDG) positron emission tomography (PET) is useful for primary staging and evaluation of treatment outcome in diffuse large B cell lymphoma (DLBCL) patients. The reduction in the maximum standardized uptake value (ΔSUVmax) from the initial to the interim 18F-FDG PET scan has been reported to predict survival in DLBCL patients. We retrospectively evaluated ΔSUVmax obtained by PET or PET-computed tomography before and after initial therapy in 31 newly diagnosed DLBCL patients who were treated with R-CHOP (rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisolone) therapy. Receiver observation characteristic curve analysis was used to evaluate the optimal cutoff value for the ΔSUVmax for disease progression. The 3-year progression-free survival rate of patients with ΔSUVmax ≥83 and <83 % was found to be 91 and 25 %, respectively (P < 0.001). The 4-year overall survival rate of patients with ΔSUVmax ≥83 and <83 % was found to be 100 and 83 %, respectively (P = 0.046). The ΔSUVmax observed before and after R-CHOP therapy could be useful in the prediction of disease progression and survival in newly diagnosed DLBCL patients.