Nomogram for predicting transmural bowel infarction in patients with acute superior mesenteric venous thrombosis

Figure 3 Decision curve analysis for the nomogram. A: The Y-axis shows the net benefit. The X-axis shows the corresponding risk threshold. The green line represents the assumption that all patients have transmural bowel infarction (TBI). The thin black line represents the assumption that no patients have TBI. The red line represents the nomogram. The decision curve in the validation cohort indicated that if the threshold probability is between 0 and 1.0, then using the nomogram to predict TBI adds more benefit than the treat-all-patients scheme or treat-none scheme; B: Clinical impact curve for the risk model. Of 1000 patients, the red solid line shows the total number who would be deemed at high risk for each risk threshold. The green dashed line shows how many of those would be true positives cases. DCA: Decision curve analysis; TBI: Transmural bowel infarction.