Keywords: Digestive, fMRITo confirm a quantitative imaging predictor for evaluation of early treatment response and prognosis to definitive chemoradiotherapy (dCRT) in patients with esophageal squamous cell carcinoma , using BOLD MR images. R2* values were obtained pre- and post-dCRT in 28 patients using BOLD MR. Independent samples t-test (normality) or Mann-Whitney U test (non-normality) was used to compare differences of R2*-related parameters between CR and non-CR groups. Diagnostic performance of parameters in predicting response was tested with receiver operating characteristic curve analysis. 3-years overall survival (OS) was evaluated using by Kaplan Meier curve, log rank test, and Cox proportional hazards regression analysis.
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