Computer-assisted planning of nonlinear access paths for MUKNO

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In the initial phase of the project we developed methods to plan straight access paths for multi-port bone surgery. These methods are now extended to nonlinear paths. This should allow for drilling canals with larger diameters while still maintaining the necessary safety distance to the risk structures. Here, it is important to constantly update the planning for the navigation. The image acquisition and segmentation of the risk structures are crucial requirements for an accurate planning. Therefore, we further improve upon the reconstruction for the C-arm. Additionally, the segmentation of the risk structures is extended to C-arm data and completed by an automatic detection of the risk structures in both modalities. Therewith we enable an accurate planning of nonlinear access paths for multi-port bone surgery.