Abstract
The objective of this study is to assess the criteria for metastatic involvement of the LN (MLN) according to magnetic resonance imaging (MRI) and to identify the most prognostically significant. The MRI data of 159 removed LN were compared with the results of a morphological study of the resected preparations. ROC- analysis (Receiver Operating Characteristic curve) was used to determine the diagnostic performance of threshold values. The test performance was evaluated depending on the area under the ROC curve — the AUC parameter (Area Under Curve). In order to evaluate the prognostic significance of MRI predictors for metastatic involvement of the LN, uni-and multivariate regression logistic analyses were performed. According to the results of multivariate analysis, the configuration index is less than or equal to 1.65, the absence of a signal from the fatty tissue of the hilum of LN, and perinodular edema are the most prognostically significant criteria for metastatic involvement of the LN (p < 0.05).
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