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  • Title: Diagnostic accuracy of preoperative 18F-FDG PET or PET/CT in detecting pelvic and para-aortic lymph node metastasis in patients with endometrial cancer: a systematic review and meta-analysis.
    Author: Hu J, Zhang K, Yan Y, Zang Y, Wang Y, Xue F.
    Journal: Arch Gynecol Obstet; 2019 Sep; 300(3):519-529. PubMed ID: 31165242.
    Abstract:
    PURPOSE: The aim of this study was to assess the diagnostic accuracy of preoperative 18F-FDG PET or PET/CT in detecting pelvic lymph node (PLN) and para-aortic lymph node (PALN) metastasis in patients with endometrial cancer (EC) in systematic review and meta-analysis format. METHODS: A comprehensive search was performed on PubMed, Cochrane Library, EMBASE, Web of science, SpringerLink and Science Direct for studies reporting the diagnostic value of preoperative 18F-FDG PET or PET/CT in detecting PLN and PALN metastasis had been published up to August 8, 2018. Studies were included if enough data could be extracted for calculation of diagnostic accuracy indices. RESULTS: Nineteen studies (1431 patients in total) were included in the analysis. On a lymph node basis, the overall pooled sensitivity, specificity, AUC and overall diagnostic accuracy (Q* index) of 18F-FDG PET or PET/CT in detecting total lymph node metastasis were 0.68 (95% CI 0.63-0.73), 0.96 (95% CI 0.96-0.97), 0.82, and 0.75, respectively. The corresponding indices for detecting PLN metastasis were 0.61 (95% CI 0.52-0.69), 0.96 (95% CI 0.95-0.97), 0.79, and 0.73, respectively. And the corresponding value for detection of PALN were 0.70 (95% CI 0.58-0.79), 0.92 (95% CI 0.9-0.94), 0.84, and 0.77, respectively. Data based on patients also performed well. CONCLUSIONS: 18F-FDG PET and PET/CT both have excellent diagnostic performance for detecting lymph node metastasis, including PLN and PALN metastasis, in patients with endometrial cancer preoperatively. Though the utility of this method is limited due to its moderate sensitivity, it can help surgeons make better-tailored surgical decision for its high specificity.
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