Fast generation of 3D bone models for craniofacial surgical planning: an interactive approach

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A comprehensive image processing pipeline for efficient and accurate construction of 3D surface skull models for computer-aided craniofacial surgical planning is presented. In a pre-processing step, algorithms for noise and artefact reduction enhance initial CT data sets. Next, segmentation is real-time visualized in volume and provides the user with an instant overview of the ongoing segmentation. Finally, a dedicated implementation of the Marching Cube algorithm for bone surface extraction is employed. The pipeline was tested by generation of surface models from ten CT scans acquired for craniofacial surgical planning.