A Microscopic Optically Tracking Navigation System That Uses High-resolution 3D Computer Graphics
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- YOSHINO Masanori
- Department of Neurosurgery, Graduate School of Medicine, The University of Tokyo
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- SAITO Toki
- Department of Clinical Information Engineering, Graduate School of Medicine, The University of Tokyo
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- KIN Taichi
- Department of Neurosurgery, Graduate School of Medicine, The University of Tokyo
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- NAKAGAWA Daichi
- Department of Neurosurgery, Graduate School of Medicine, The University of Tokyo
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- NAKATOMI Hirofumi
- Department of Neurosurgery, Graduate School of Medicine, The University of Tokyo
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- OYAMA Hiroshi
- Department of Clinical Information Engineering, Graduate School of Medicine, The University of Tokyo
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- SAITO Nobuhito
- Department of Neurosurgery, Graduate School of Medicine, The University of Tokyo
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抄録
Three-dimensional (3D) computer graphics (CG) are useful for preoperative planning of neurosurgical operations. However, application of 3D CG to intraoperative navigation is not widespread because existing commercial operative navigation systems do not show 3D CG in sufficient detail. We have developed a microscopic optically tracking navigation system that uses high-resolution 3D CG. This article presents the technical details of our microscopic optically tracking navigation system. Our navigation system consists of three components: the operative microscope, registration, and the image display system. An optical tracker was attached to the microscope to monitor the position and attitude of the microscope in real time; point-pair registration was used to register the operation room coordinate system, and the image coordinate system; and the image display system showed the 3D CG image in the field-of-view of the microscope. Ten neurosurgeons (seven males, two females; mean age 32.9 years) participated in an experiment to assess the accuracy of this system using a phantom model. Accuracy of our system was compared with the commercial system. The 3D CG provided by the navigation system coincided well with the operative scene under the microscope. Target registration error for our system was 2.9 ± 1.9 mm. Our navigation system provides a clear image of the operation position and the surrounding structures. Systems like this may reduce intraoperative complications.
収録刊行物
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- Neurologia medico-chirurgica
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Neurologia medico-chirurgica 55 (8), 674-679, 2015
一般社団法人 日本脳神経外科学会