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The AUCs of the original diagnostic model and the diagnostic scoring model for metastases were 0.919 (0.883–0.955) and 0.914 (0.880–0.948), respectively. There was no statistical significance of AUC between the two diagnostic model (P = 0.644). As for the diagnostic scoring model, a cutoff value of ≥ 9 points yielded a sensitivity of 89.43% and a specificity of 76.27% for diagnosis of metastases.
