Development of a novel multi-modal surgical navigation system with the integration of three-dimensional cerebrovascular imaging data.

点击翻译按钮获取中文摘要

Thus far, in the field of neurosurgery, image-guided surgical navigation system has been used in limited field such as brain tumor surgery, stereotactic biopsy and stereotactic surgery. The aim of this study is to expand the use of the surgical navigation system to the field of cerebrovascular surgery. At first, we developed basic technology introducing three-dimensional cerebrovascular image data such as three-dimensional CT angiography (3D-CTA), three-dimensional rotational angiography (3D-RA) and three-dimensional ultrasonic angiography (3D-UA) into navigation system, and we measured the accuracy of registration three-dimensionally in phantom experiments and clinical setting. As a result, error in registration was 1-2mm, and this was considered to be sufficient accuracy to apply for the field of cerebrovascular surgery. In addition, we developed three-dimensional cerebrovascular image-guided surgical navigation system by which real-time update of registration became possible by integrating 3D-CTA, 3D-RA and 3D-UA, and evaluated the accuracy of registration. Error in registration in this navigation system was about 2 mm, and this was thought to be accuracy that clinical application is possible.