Virtual colonscopy system based on VTK and ITK

Virtual colonscopy employs many techniques, such as 3D rendering, 3D segmentation, centreline extraction and navigation for computer-assistant diagnosis (CAD). Some CT images that are looked as two-dimensional slice images are computer-generated 3D reconstructed images simulating the optical colonoscopy views. When flying through in the simulative organ, the doctor could inspect the Ployp that attach at the inner wall of the organ. In this paper, we introduce our solutions to implement a typical virtual colonoscopy system based on VTK and ITK tools. Our work mainly foucs on 3D rendering and centreline extraction. The result of our experiments reveals that the proposed virtual colonoscopy system is a helpful tool for doctors and researchers to examine the topology of patient´s colon in diagnosis.