Intelligent Operating Theater Using Intraoperative Open-MRI
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概要
- 論文の詳細を見る
Malignant brain tumors vary among patients and are characterized by their irregular shapes and infiltration. Localization of functional areas in the brain also differs among patients, and excess removal of tumor near eloquent areas may increase the risk of damage of function, such as motor paresis and speech disturbance. Recent progress in magnetic resonance (MR) imaging technology has enabled acquisition of intraoperative images and totally changed the neurosurgery of malignant brain tumors. Before, surgeons could merely speculate about the results of surgical manipulation and have no certainty about procedure outcomes until postoperative examination. Because intraoperative MR images allow visualization of the size of residual tumor(s) and the positional relationship between the tumor(s) and eloquent areas, surgeons are now able to achieve safe and reliable surgery. As an example, positional error on preoperative MR images caused by shifting of the brain (brain shift), a long-standing annoyance for surgeons, has been resolved using intraoperative MR images for surgical navigation, allowing precise resection. Two types of open-MR imaging scanner, a 0.2- or 0.3-tesla hamburger-type scanner with a horizontal gap and a 0.12- or 0.5-tesla double doughnut-type scanner with a vertical gap, are now available in the operating theater, and 1.5-tesla bore-type scanners are available. A 3.0-tesla bore-type scanner is planned. Intraoperative MR imaging includes diffusion-tensor and diffusion-weighted imaging, which allows visualization of nerve fibers in the white matter, especially the pyramidal tract. Such images are valuable aids in the precise resection of residual lesions of malignant brain tumors near eloquent areas without injuring motor function.
- 日本磁気共鳴医学会の論文
- 2005-11-15
著者
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HORI Tomokatsu
Department of Neurosurgery, Tokyo Women's Medical University
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Hori Tomokatsu
Department Of Neurosurgery Tokyo Women's Medical University
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TANIGUCHI Hiroki
Faculty of Engineering, Osaka University
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Takakura Kintomo
Department Of Neurosurgery Neurological Institute Tokyo Women's Medical University
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OZAWA Norihiko
Faculty of Advanced Techno-Surgery, Institute of Advanced Biomedical Engineering and Science, Tokyo
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MURAGAKI Yoshihiro
Faculty of Advanced Techno-Surgery, Institute of Advanced Biomedical Engineering and Science, Tokyo
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NAKAMURA Ryoichi
Faculty of Advanced Techno-Surgery, Institute of Advanced Biomedical Engineering and Science, Tokyo
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ISEKI Hiroshi
Faculty of Advanced Techno-Surgery, Institute of Advanced Biomedical Engineering and Science, Tokyo
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TAKAKURA Kintomo
Faculty of Advanced Technosurgery, Division of Advanced Biomedical Engineering & Science, Graduate S
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Hori Tomokatsu
Department Of Neurosurgery Faculty Of Medicine University Of Tokyo.
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Taniguchi Hiroki
Faculty Of Advanced Technosurgery Division Of Advanced Biomedical Engineering & Science Graduate
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Iseki Hiroshi
Faculty Of Advanced Techno-surgery Institute Of Advanced Biomedical Engineering And Science Tokyo Wo
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Ozawa Norihiko
Faculty Of Advanced Techno-surgery Institute Of Advanced Biomedical Engineering And Science Tokyo Wo
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Hori Tomokatsu
Department Of Neurosurgery Institute Of Clinical Neurology Tokyo Women's Medical University
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Nakamura Ryoichi
Faculty Of Advanced Techno-surgery Institute Of Advanced Biomedical Engineering And Science Tokyo Wo
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Higa Takashi
Department Of Neurosurgery Neurological Institute Tokyo Women's Medical University
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Muragaki Yoshihiro
Faculty Of Advanced Techno-surgery Institute Of Advanced Biomedical Engineering And Science Tokyo Wo
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Hori Tomokatsu
Department Of Neurosurgery Tokyo Woman's Medical University
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Takakura Kintomo
Faculty Of Advanced Technosurgery Division Of Advanced Biomedical Engineering & Science Graduate
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HORI Tomokatsu
Department of Neurosurgery, Tokyo Women's Medical University
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