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Three-dimensional (3D) modeling and fabrication of a colonic stent simulator. (A) Automated segmentation of the colon from contrast-enhanced computed tomography. (B) 3D images of an artificial whole colon and its individual segments generated using modeling software. (C) A silicone-based colon model and malignant stenotic module were produced through 3D printing. (D) All colon parts were assembled in the body case. (E) Intraluminal view of 3D-printed model.
