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. 2020 Jan 21;9:1548. doi: 10.3389/fonc.2019.01548

Figure 3.

Figure 3

Radiomics nomogram of Model 3 for predicting the ESCC patients with LN metastasis (A). Calibration curves of the radiomics nomogram in development cohort (B), internal validation cohort (C) and external validation cohort (D). Calibration curves reflect the calibration of Model 3 in terms of agreement between the predicted of LN metastasis and observed of LN metastasis. The 45-degree blue diagonal line represents a perfect ideal model. The closer the red dot-dash line is to the diagonal line, the better the prediction. (E–G) presents AUC values on the development, internal validation, and external validation cohort of Model 1, 2, and 3. Potential incremental value of models 2 and 3 relative to model 1 were evaluated by net reclassification improvement (NRI). (B,E) for development cohort, (C,F) for internal validation cohort, and (D,G) for external validation cohort.