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  • Title: The prognostic value of positron emission tomography/computed tomography-based parameters in locally advanced esophageal squamous cell carcinoma treated with chemoradiation therapy.
    Author: Zhang W, Jia H, Cheng Z, Diao W, Wang Y, Cao B, Kou Y, Wang Q.
    Journal: Nucl Med Commun; 2022 Dec 01; 43(12):1239-1246. PubMed ID: 36345769.
    Abstract:
    OBJECTIVES: To assess the prognostic value of PET/computed tomography-based parameters in patients with locally advanced esophageal squamous cell carcinoma (ESSC). METHODS: Sixty-seven patients with ESSC undergoing definitive chemoradiotherapy (dCRT) were retrospectively enrolled. PET/CT parameters (maximum standardized uptake value (SUVmax) metabolic tumor volume (MTV), and total glycolysis (TLG) were obtained from 18F-fluorodeoxyglucose (18F-FDG) PET/CT studies. The correlation between overall survival and PET/CT parameters was analyzed using a Cox proportional hazards model. RESULTS: There were no differences in TLG, MTV, and SUVmax values across age, sex, tumor location, and lymph node status. However, for patients with cT3-4 disease, TLG and SUVmax were significantly higher (P = 0.019 and P = 0.018, respectively), and MTV showed an increasing trend (P = 0.068). There were significant correlations among TLG, MTV and SUVmax. According to the receiver-operating curve, the cutoff values of TLG, MTV and SUVmax dichotomized by survival status at 2 years were 64.00 g, 9.63 ml and 9.97 g/ml, respectively. In univariate analysis, increased TLG, MTV and SUVmax were significant negative prognostic factors for OS. However, in multivariate analysis, only SUVmax was an independent prognostic factor for overall survival (hazard ratios = 2.857, 95% confidence intervals: 1.837-4.442; P = 0.017). CONCLUSIONS: PET/CT is a useful tool for predicting the prognoses in patients with locally advanced ESSC treated with dCRT. Future prospective studies with a large number of samples should be conducted to confirm these results.
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