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EJNMMI Research
Fig. 3 | EJNMMI Research

Fig. 3

From: Pre-test 68Ga-PSMA-ligand PET/CT positivity in early biochemical recurrent prostate cancer after radical prostatectomy—validation of a prediction model

Fig. 3

Local regression nonparametric smoothing (calibration) plot of the compact (a) and comprehensive (b) prediction model showing the relationship between nomogram predictions and observed frequency of positive 68Ga-PSMA-11-ligand PET/CT examinations in the validation cohort. Perfect or ideal predictions correspond to the 45° line (grey line). Points situated above the 45° line correspond to overprediction in the validation cohort in comparison to the prediction model, whereas points estimated below the 45° line correspond to underestimation in the validation cohort according to the prediction model (dotted black line). Vertical lines indicate the frequency distribution of predicted probabilities

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