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  • Title: Value of metabolic parameters of primary lesions examined by 18F-FDG PET/CT for endometrial cancer in preoperative evaluation.
    Author: Gai QZ, Lv YB, Li GY, Zhang DQ, Gao Z, Fang XH.
    Journal: Eur Rev Med Pharmacol Sci; 2021 Mar; 25(6):2493-2502. PubMed ID: 33829435.
    Abstract:
    OBJECTIVE: To evaluate metabolic parameters of primary lesions examined by 18F-FDG PET/CT (18Fluorodeoxyglucose Positron Emission Tomography /Computed Tomography), including maximum standard uptake value (SUVmax), metabolic volume (MTV), and total lesion glycolysis (TLG). PATIENTS AND METHODS: 79 patients with endometrial cancer were selected as the subjects. They were diagnosed by histopathology in our hospital for the first time from January 2016 to December 2018. All the patients were examined by 18F-FDG PET/CT. Retrospective statistical analysis was carried out to evaluate different expression of metabolic parameters examined by 18F-FDG PET/CT of different clinicopathologic factors in endometrial cancer. Spearman correlation analysis was also used. RESULTS: SUVmax, TLG and MTV were correlated with FIGO staging, tissue grading, depth of myometrial invasion, and lymph node metastasis. SUVmax, TLG and MTV in lymph node metastasis group had high clinical staging, low differentiation and myometrial invasion depth >1/2, which were significantly higher than those in no lymph node metastasis group (low clinical staging, high differentiation and myometrial invasion depth ≤1/2). TLG had the greatest difference(p<0.001). TLG and MTV were correlated with histopathological classification (p<0.05). The expression levels of SUVmax, MTV and TLG of primary lesions were negatively correlated with the positive expression of ER and PR in tumor tissues (p<0.05), and significantly positively correlated with positive expression of HER -2 and Ki-67 (p<0.01). The expression of ER, PR, HER-2 and KI-67 in tumor tissues was correlated with tissue grading, clinical staging, depth of muscular layer infiltration, cervical tissue involvement and lymph node metastasis (p<0.05). CONCLUSIONS: Metabolic parameters of primary lesions examined by 18F-FDG PET/CT has a good correlation with its clinicopathological features. They can provide reference for the preoperative formulation of treatment plan for endometrial cancer, so as to reduce the risk of surgery and improve the prognosis of patients.
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