Int J Comput Assist Radiol Surg - A fluorolaser navigation system to guide linear surgical tool insertion.

Tópicos

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Resumo

RPOSE: Conventional navigation systems for minimally invasive orthopedic surgery require a secondary monitor to display guidance information generated with CT or MRI images. Newer systems use augmented reality to project surgical plans into binocular glasses. These surgical procedures are often mentally challenging and cumbersome to perform.METHOD: A comprehensive surgical navigation system for direct guidance while minimizing radiation exposure was designed and built. System accuracy was evaluated using in vitro needle insertion experiments. The fluoroscopic-based navigation technique is combined with an existing laser guidance technique. As a result, the combined system is capable of surgical planning using two or more X-ray images rather than CT or MRI scans. Guidance information is directly projected onto the patient using two laser beams and not via a secondary monitor.RESULTS: We performed 15 in vitro needle insertion experiments as well as 6 phantom pedicle screw insertion experiments to validate navigation system accuracy. The planning accuracy of the system was found to be 2.32 mm and 2.28?, while its overall guidance accuracy was found to be 2.40 mm and 2.39?. System feasibility was demonstrated by successfully performing percutaneous pin insertion on phantoms.CONCLUSION: Quantitative and qualitative evaluations of the fluorolaser navigation system show that it can support accurate guidance and intuitive surgical tool insertion procedures without preoperative 3D image volumes and registration processes.

Resumo Limpo

rpose convent navig system minim invas orthoped surgeri requir secondari monitor display guidanc inform generat ct mri imag newer system use augment realiti project surgic plan binocular glass surgic procedur often mental challeng cumbersom performmethod comprehens surgic navig system direct guidanc minim radiat exposur design built system accuraci evalu use vitro needl insert experi fluoroscopicbas navig techniqu combin exist laser guidanc techniqu result combin system capabl surgic plan use two xray imag rather ct mri scan guidanc inform direct project onto patient use two laser beam via secondari monitorresult perform vitro needl insert experi well phantom pedicl screw insert experi valid navig system accuraci plan accuraci system found mm overal guidanc accuraci found mm system feasibl demonstr success perform percutan pin insert phantomsconclus quantit qualit evalu fluorolas navig system show can support accur guidanc intuit surgic tool insert procedur without preoper d imag volum registr process

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