Preoperative colonoscopy through the colonic stent in patients with colorectal cancer obstruction

Figure 1 Diagram of patients through the study.

Figure 2 Successful passage of colonoscope through the self-expendable metallic stent. A: Tunnel is created by expanded stent; B: Colonoscope pass through the tunnel without resistance and reach to the proximal end of stent.

Figure 3 Receiver operating characteristic curve for prediction of successful passage of colonoscope from the expansion diameter of stent. ROC: Receiver operating characteristic.