Effect of passive muscle length change on apparent diffusion coefficient: Detection with clinical MR imaging

Masamitsu Hatakenaka, Hidetake Yabuuchi, Yoshio Matsuo, Takashi Okafuji, Takeshi Kamitani, Taro Setoguchi, Kei Nishikawa, Hiroshi Honda

研究成果: ジャーナルへの寄稿記事

17 引用 (Scopus)

抄録

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.

元の言語英語
ページ(範囲)59-63
ページ数5
ジャーナルMagnetic Resonance in Medical Sciences
7
発行部数2
DOI
出版物ステータス出版済み - 12 1 2008

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Muscles
Protons
Ankle Joint
Magnetic Resonance Spectroscopy

All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging

これを引用

Effect of passive muscle length change on apparent diffusion coefficient : Detection with clinical MR imaging. / Hatakenaka, Masamitsu; Yabuuchi, Hidetake; Matsuo, Yoshio; Okafuji, Takashi; Kamitani, Takeshi; Setoguchi, Taro; Nishikawa, Kei; Honda, Hiroshi.

:: Magnetic Resonance in Medical Sciences, 巻 7, 番号 2, 01.12.2008, p. 59-63.

研究成果: ジャーナルへの寄稿記事

Hatakenaka, Masamitsu ; Yabuuchi, Hidetake ; Matsuo, Yoshio ; Okafuji, Takashi ; Kamitani, Takeshi ; Setoguchi, Taro ; Nishikawa, Kei ; Honda, Hiroshi. / Effect of passive muscle length change on apparent diffusion coefficient : Detection with clinical MR imaging. :: Magnetic Resonance in Medical Sciences. 2008 ; 巻 7, 番号 2. pp. 59-63.
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abstract = "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.",
author = "Masamitsu Hatakenaka and Hidetake Yabuuchi and Yoshio Matsuo and Takashi Okafuji and Takeshi Kamitani and Taro Setoguchi and Kei Nishikawa and Hiroshi Honda",
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T2 - Detection with clinical MR imaging

AU - Hatakenaka, Masamitsu

AU - Yabuuchi, Hidetake

AU - Matsuo, Yoshio

AU - Okafuji, Takashi

AU - Kamitani, Takeshi

AU - Setoguchi, Taro

AU - Nishikawa, Kei

AU - Honda, Hiroshi

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N2 - 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.

AB - 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.

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