MURAGAKI Yoshihiro
Department School of Medicine(Tokyo Women's Medical University Hospital), School of Medicine Position Visiting Professor |
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Language | Japanese |
Title | Development of the Hybrid Marker System for Auto Registration in the MRI-guided Surgical Navigation (First study on clarification of the requirements) |
Conference Type | Nationwide Conferences |
Presentation Type | Speech |
Lecture Type | General |
Date | 2007/11/04 |
Society abstract | 日本コンピュータ外科学会誌 9(3),286-287 2007 |
Summary | In order to develop a new marker system for surgical navigation, authors examined the requirements.
The markers, named "Hybrid marker", had two functions; one was a contrast agent for MRI, the other was a reflective ball for position measurement. The hybrid markers were planed to put between a receiver coil for MRI and a patient. For clarifying the area to put the markers, we analyzed former62clinical data, and fabricated a phantom to take images of MRI. In the analysis for clinical data, each area of craniotomy approximated a simple plane. Angle between the plane and a perpendicular line was calculated. Data showed to contain80% cases from40to69degrees, and the angle is31degrees when a tumor is located on the parietal lobe. The phantom successfully took both T1-weighted and T2-weighted images. |