BackgroundThere is increased interest in dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) for predicting the outcomes of patients with advanced esophageal cancer.PurposeTo explore whether DCE-MRI histogram parameters can predict 12-month progression-free survival (PFS) in patients with advanced esophageal squamous carcinoma receiving concurrent chemoradiation therapy (CRT).Material and MethodsThis retrospective study enrolled 134 patients with advanced esophageal squamous carcinoma who were receiving CRT. The pre-CRT DCE-MRI histogram parameters (median, mean, SD, skewness, kurtosis, and 10th and 90th percentiles) of Ktrans, Kep, and Ve were collected. PFS analyses were performed using the Kaplan–Meier method and log-rank tests to compute the survival curves. The significant prognostic predictors among the data characteristics and DCE-MRI parameters were determined using multivariate Cox proportional hazards regression analyses.ResultsThere were 65 good responders (PFS ≥ 12 months) and 69 poor responders (PFS < 12 months). The median and mean values of Ktrans were higher, and the kurtosis value of Ktrans was lower in good responders. The median, mean, and 10th and 90th percentile values of Ktrans were higher, and the kurtosis values of Ktrans and Ve were lower in good responders. The PFS of patients aged ≥60 years, a CR effect, or a 10th percentile value of Ktrans ≥0.13 was increased (P < 0.001, <0.001, and 0.014, respectively).ConclusionDCE-MRI histogram parameters can be used to evaluate the response to CRT in patients with advanced esophageal squamous carcinoma. The 10th percentile value of Ktrans has significant prognostic value for 12-month PFS.
Acta Radiologica – SAGE
Published: Jan 1, 2020
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