Effect of Passive Muscle Length Change on Apparent Diffusion Coefficient : Detection with Clinical MR Imaging
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概要
- 論文の詳細を見る
Purpose: We investigated whether change in muscle microstructure associated with passive extension and contraction affects proton diffusivity. Material and Methods: In 6 male subjects, we compared apparent diffusion coefficients (ADC) along the posterior-to-anterior (ADC-PA), right-to-left (ADC-RL) and superior-to-inferior (ADC-SI) directions of the right tibialis anterior muscle with the ankle joint in passive plantar flexion and passive dorsiflexion. Results: Compared to the respective ADCs at plantar flexion, the ADC-PA (P=0.002) and ADC-RL (P=0.008) were significantly greater, but ADC-SI (P=0.008) significantly lower at dorsiflexion. Conclusion: Our results indicate that change in muscle microstructure associated with passive extension and contraction would affect proton diffusivity, and this alteration of proton diffusivity could be detected by measuring ADC with a clinical magnetic resonance scanner.
- 日本磁気共鳴医学会の論文
- 2008-06-01
著者
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HONDA Hiroshi
Department of Physics, Faculty of Science, Shinshu University
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YABUUCHI Hidetake
Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University
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HATAKENAKA Masamitsu
Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University
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NISHIKAWA Kei
Radiology Center, Kyushu University
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Nishikawa Kei
Radiology Center Kyushu University Hospital
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Honda Hiroshi
Department Of Clinical Radiology Graduate School Of Medical Sciences Kyushu University
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MATSUO Yoshio
Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University
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Matsuo Yoshio
Department Of Clinical Radiology Graduate School Of Medical Sciences Kyushu University
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KAMITANI Takeshi
Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University
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OKAFUJI Takashi
Department of Clinical Radiology, Kyushu University Graduate School of Medical Sciences
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Okafuji Takashi
Department Of Clinical Radiology Graduate School Of Medical Sciences Kyushu University
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Yabuuchi Hidetake
Department Of Clinical Radiology Graduate School Of Medical Sciences Kyushu University
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Honda Hiroshi
Department Of Agricultural Chemistry Tokyo University Of Agriculture
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SETOGUCHI Taro
Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University
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Setoguchi Taro
Department Of Clinical Radiology Graduate School Of Medical Sciences Kyushu University
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Kamitani Takeshi
Department Of Clinical Radiology Graduate School Of Medical Sciences Kyushu University
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Hatakenaka Masamitsu
Department Of Clinical Radiology Graduate School Of Medical Sciences Kyushu University
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Honda Hiroshi
Department Of Clinical Radiology Kyushu University
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Hatakenaka Masamitsu
Department Of Clinical Radiology Kyushu University
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