| Project/Area Number |
01490014
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| Research Category |
Grant-in-Aid for General Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
広領域
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| Research Institution | Kobe University |
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Principal Investigator |
TAKAMORI Toshi Professor, Faculty of Engineering, Kobe University, 工学部, 助教授 (10031098)
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| Co-Investigator(Kenkyū-buntansha) |
KIMURA Mitsuru Doctor, Nishiwaki City Hospital, 医師 (50204996)
MATSUMOTO Satoru Professor, Faculty of Medicine, Kobe University, 医学部, 教授 (10030850)
TADOKORO Satoshi Research Associate, Faculty of Engineering, Kobe University, 工学部, 助手 (40171730)
KIMURA Ichiro Associate Professor, Faculty of Engineering, Kobe University, 工学部, 助教授 (60031134)
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| Project Period (FY) |
1989 – 1991
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| Project Status |
Completed (Fiscal Year 1991)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,900,000)
Fiscal Year 1991: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1990: ¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1989: ¥1,500,000 (Direct Cost: ¥1,500,000)
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| Keywords | cerebral vascular / blood flow prediction / visual simulation / 血流動態 / 4次元画像化 / ビジュアル・シミュレ-ション |
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| Research Abstract |
The number of cerebral vascular diseases which require surgical operation has recently been increasing. Although the most of these operations need the hemostasis at hemorrhagic regions, it is generally difficult to stop bleeding at a required part, so far. In many cases, a blood supply source to the cerebral vascular system or a part of the vascular (Willis ring, etc.) used to be temporally shut off. But these methods of shutting off sometimes cause ischemia at other parts of brain and fatal risks to patients.
It is thought that to minimize the risk on neurosurgical operations it is effective to give medical doctors foresight knowledges with the blood flow estimation system : the system with which doctors could simulate the operations through three dimensional graphics. In this study, the system has been developed.
In this study, first, a cerebral vascular system which is organized by 'Willis ring' has been regarded as a kind of fluid circuit. And 'Willis ring' is considered as a system which consists of nine forked pipes.
Second, the three dimensional computer graphics (3D-CG) of the cerebral vascular system and the skull bone were made to display the above results in real-time. These 3D-CG are based on the data which are detected from the X-ray films of the cerebral vascular system and from CT films of the skull bone. These graphics are possible on the display to rotate, to transfer, to be divided into some parts, and to observe the inner structure and outer figure of the system from every direction. Each cerebral blood flow rate or blood pressure as the results of above calculation was displayed in a different color for each magnitude, as they could be understood at a glance.
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