Prognostic Value of FDG PET/CT in Patients With Neuroendocrine Carcinoma of the Uterine Cervix

Autor: Yuanyuan Jiang, Zhaohui Zhu, Wuying Cheng, Fang Li, Guozhu Hou
Rok vydání: 2021
Předmět:
Zdroj: Clinical Nuclear Medicine. 46:971-976
ISSN: 1536-0229
0363-9762
DOI: 10.1097/rlu.0000000000003909
Popis: We evaluated the prognostic value of metabolic parameters measured on pretreatment FDG PET/CT in patients with cervical neuroendocrine carcinomas (NECs).A total of 22 patients with cervical NECs who underwent pretreatment FDG PET/CT were retrospectively reviewed. The SUVmax, metabolic tumor volume (MTV), and total lesion glycolysis (TLG) of the primary lesion were measured. The associations between prognostic factors and progression-free survival (PFS) and overall survival (OS) were investigated using the Kaplan-Meier method, log-rank test, and univariate and multivariate Cox proportional hazards model.Of the 22 patients, 12 developed disease progression, and 5 died during the follow-up period. Univariate analyses revealed that MTV, TLG, and the International Federation of Gynecology and Obstetrics stage were significantly associated with PFS (all P0.05), whereas SUVmax did not show a significant correlation with PFS. Kaplan-Meier survival curves revealed that patients with MTV31.9 cm3 (log-rank, P0.001), TLG154.3 (log-rank, P0.001), and higher International Federation of Gynecology and Obstetrics stage (log-rank, P = 0.026) had significantly shorter PFS. In the multivariate analyses, MTV (P = 0.017; hazard ratio [HR], 7.298; 95% confidence interval [CI], 1.427-37.316) and TLG (P = 0.003; HR, 15.175; 95% CI, 2.470-93.244) were independent prognostic factors, whereas for OS, the univariate analysis revealed that only TLG154.3 showed statistical significance (P = 0.043; HR, 9.821; 95% CI, 1.080-89.290).Metabolic tumor volume and TLG on FDG PET/CT were the significant prognostic factors of PFS in patients with cervical NECs. Patients with high MTV and TLG had worse clinical outcomes. In addition, TLG may also be a predictor of OS.
Databáze: OpenAIRE