Quantitative comparison of cranial approaches in the anatomy laboratory: A neuronavigation based research method

更新时间:2023-08-14

【摘要】AIM To describe the development and validation of a novel neuronavigation-based method, which allows the quan-tification of the anatomical features that define an approach, as well as real-time visualization of the surgical pyramid. METHODS The method was initially developed with commerciallyavailable hardware for coordinate collection(a digitizer and a frameless navigation system) and software for volume rendering; dedicated neuronavigation software(ApproachV iewer, part of GTx-UHN) was then developed. The accuracy of measurements and the possibility of volumetric rendering of surgical approaches simulated in a phantom were compared among three different methods and commercially-available radiological software. In the anatomy laboratory, ApproachV iewer was applied to the comparative quantitative analysis of multiple neurosurgical approaches and was used by many surgeons who were untrained for the research method.RESULTS The accuracy of ApproachV iewer is comparable to commercially-available radiological software. In the anatomy laboratory, the method appears versatile. The system can be easily used after brief training. ApproachV iewer allows for real-time evaluation and comparison of surgical approaches, as well as post-dissection analyses of collected data. The accuracy of the method depends on the navigation registration: with a 1-2 mm registration error, it is adequate for evaluation and comparison of most neurosurgical approaches.CONCLUSION This new research method and software allows semiautomated visualization, quantification, and comparison of neurosurgical approaches in the anatomy laboratory.

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