a Winship Cancer Institute , Emory University , Atlanta , GA , USA.
Leuk Lymphoma. 2019 Aug;60(8):1965-1971. doi: 10.1080/10428194.2018.1562181. Epub 2019 Feb 4.
[18F] fluorodeoxyglucose (FDG) - positron emission tomography (PET)/computed tomography (CT) is used to stage and assess response in diffuse large B-cell lymphoma (DLBCL), though the prognostic value of tumor metrics calculated from interim scans remains unsolved. We investigated the predictive value of interim and end-of-treatment (EOT) metabolic tumor volume (MTV), and total lesion glycolysis (TLG) on progression-free survival (PFS) at 24 months in patients with DLBCL treated with rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP). Controlling for pretreatment MTV, a positive interim MTV was highly correlated with (0.86) and a significant predictor of a positive EOT MTV ( = .03). Interim MTV > 0 (HR 5.51, CI 1.13, 26.79) and EOT MTV > 4.68 (HR 10.75, CI 1.31, 105.48) were significant predictors of PFS24. Our data show PET-derived metrics of pretreatment and interim MTV offer significant predictive value for EOT response and PFS, and can guide future response-adapted treatment approaches for DLBCL patients that build on the R-CHOP backbone.
[18F]氟脱氧葡萄糖(FDG)-正电子发射断层扫描(PET)/计算机断层扫描(CT)用于弥漫性大 B 细胞淋巴瘤(DLBCL)的分期和反应评估,尽管从中间扫描计算的肿瘤指标的预后价值仍未解决。我们研究了在接受利妥昔单抗、环磷酰胺、多柔比星、长春新碱和泼尼松(R-CHOP)治疗的 DLBCL 患者中,中期和治疗结束(EOT)代谢肿瘤体积(MTV)和总病变糖酵解(TLG)对 24 个月无进展生存(PFS)的预测价值。在控制预处理 MTV 的情况下,中期 MTV 阳性与 EOT MTV 阳性高度相关(0.86),并且是 EOT MTV 阳性的显著预测因子(= 0.03)。中期 MTV > 0(HR 5.51,CI 1.13,26.79)和 EOT MTV > 4.68(HR 10.75,CI 1.31,105.48)是 PFS24 的显著预测因子。我们的数据表明,预处理和中期 MTV 的 PET 衍生指标对 EOT 反应和 PFS 具有显著的预测价值,并且可以为基于 R-CHOP 骨干的 DLBCL 患者的未来反应适应性治疗方法提供指导。