Preoperative prediction of perineural invasion of rectal cancer based on a magnetic resonance imaging radiomics model: A dual-center study

Figure 6 Decision curve analysis of the clinical model, T2-weighted imaging + contrast-enhanced T1WI fusion sequence radiomics model and clinical-radiomics prediction model. The clinical-radiomics prediction model exhibits the greatest net clinical benefit. A: Decision curve analysis (DCA) in the training group; B: DCA in the internal validation group; C: DCA in the external validation group. CR: Clinical-radiomics prediction model; T2WI: T2-weighted imaging; T1CE: Contrast-enhanced T1WI.