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Insights into Imaging
Fig. 2 | Insights into Imaging

Fig. 2

From: Development and external validation of a radiomics model for assessment of HER2 positivity in men and women presenting with gastric cancer

Fig. 2

The visualized nomogram of the radiomics model (a) and receiver operating characteristic (ROC) curves in the training, internal validation, and external validation cohorts (b). a From each predictor, draw a vertical line up through the “Point” scale (the top line) to get the point and then sum all points from each predictor. Next, find the sum value in the “Total Points” scale and draw a vertical line through the “Pr (risk)” scale (the bottom line) to get the final predicted probability for HER2 positivity. CEA = carcinoembryonic antigen; cTNM = clinical TNM staging; CA199 = carbohydrate antigen 199; Radscore = radiomics signature; number of asterisks (*) listed after each variable denotes inverse association with p value for that variable. Single asterisk indicates p = 0.044, double asterisk indicates p = 0.003, and triple asterisk indicates p < 0.001. b AUC = area under the receiver operating characteristic curve; CI = confidence interval

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