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

World Journal of Methodology 2017年第4期7卷 139-147页

作者： Francesco Doglietto jimmy qiu Mayoorendra Ravichandiran Ivan Radovanovic Francesco Belotti Anne Agur Gelareh Zadeh Marco Maria Fontanella Walter Kucharczyk Fred Gentili Neurosurgery Unit Department of Medical and Surgical Specialties Radiological Sciences and Public Health University of Brescia Division of Neuroradiology Departments of Medical Imaging and Surgery University Health Network Division of Ana-tomy Department of Surgery University of Toronto Division of Neurosurgery Toronto Western Hospital Department of Surgery University Health Network

AIMTo describe the development and validation of a novel neuronavigation-based method, which allows the quan-tification of the anatomical features that define anapproach, as well as real-time visualization of the surgicapyramid. METHODSThe method was initially developed with commercially-available hardware for coordinate collection （a digitizerand a frameless navigation system） and software forvolume rendering; dedicated neuronavigation software （ApproachViewer, 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, ApproachViewer was applied to the comparative quantitative analysis of multiple neurosurgical approaches and was used by many surgeons who were untrained for the research *** accuracy of ApproachViewer is comparable to com-mercially-available radiological software. In the anatomy laboratory, the method appears versatile. The system can be easily used after brief training. ApproachViewer 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 *** new research method and software allows semi-automated visualization, quantifcation, and comparison of neurosurgical approaches in the anatomy laboratory.

关键词： Anatomical study Comparison Neurosurgical approach Quantifcation Research method 3D rendering

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