Functional Magnetic Resonance Imaging of the Human Motor Cortex
スポンサーリンク
概要
- 論文の詳細を見る
Functional magnetic resonance (MR) imaging of the brain was performed during motor task activation in five normal subjects and a patient with meningioma using conventional fast low-angle shot sequences and a 2.0 T system. A high intensity area in the motor cortex was observed in all normal subjects. Single-slice studies showed the right-sided finger task produced an increase of 1.9-23.5% (6.67 ± 4.36%) in the signal intensity of the left motor cortex, while the left-sided finger task increased the signal by 1.5-18.2% (6.09 ± 3.34%) in the right motor cortex. There was no significant difference between the sides. Multiple-slice studies also showed the activated motor cortex as a high intensity area. The maximum signal intensity increase in the activated motor area was 11.0% for the left motor cortex and 8.8% for the right motor cortex. There was no significant difference between the sides. Preoperative mapping of the patient with meningioma showed that the motor cortex was displaced posteriorly by the tumor. Functional MR imaging is possible with a standard MR imaging system and conventional gradient echo sequences. Useful clinical information can be obtained by preoperative mapping of the motor cortex.
- 日本脳神経外科学会の論文
- 1995-05-15
著者
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NIIRO Masaki
Department of Neurosurgery, Faculty of Medicine, University of Kagoshima
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Haruzono Akihiro
Department Of Neurosurgery Faculty Of Medicine University Of Kagoshima
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Niiro Masaki
Department Of Neurosurgery Faculty Of Medicine Kagoshima University
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Asakura Tetsuhiko
Department Of Neurology Kagoshima University School Of Medicine
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Fujimoto Toshiro
Department Of Neurosurgery Faculty Of Medicine University Of Kagoshima
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HIRAKAWA WATARU
Department of Neurosurgery, Faculty of Medicine, University of Kagoshima
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SASAHIRA Masahiro
Department of Neurosurgery, Faculty of Medicine, University of Kagoshima
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MATSUMOTO Tetsuro
South Japan Health Science Center, Fujimoto Hospital
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FUJIMOTO Toshiro
South Japan Health Science Center, Fujimoto Hospital
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Hirakawa Wataru
Department Of Neurosurgery Faculty Of Medicine University Of Kagoshima
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Sasahira Masahiro
Department Of Neurosurgery Faculty Of Medicine University Of Kagoshima:(present Address)department O
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Matsumoto Tetsuro
South Japan Health Science Center Fujimoto Hospital
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