Joint position affects muscle proton diffusion: Evaluation with a 3-T MR system

Masamitsu Hatakenaka, Hidetake Yabuuchi, Shunya Sunami, Takeshi Kamitani, Yukihisa Takayama, Kei Nishikawa, Hiroshi Honda

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

OBJECTIVE. To determine whether joint position affects muscle proton diffusion, fractional anisotropy and primary (λ1), secondary (λ2), and tertiary (λ3) eigenvalues of calf muscles were compared among ankle positions of plantar flexion, intermediate, and dorsiflexion. CONCLUSION. In tibialis anterior, fractional anisotropy and λ1 decreased, but λ2 and λ3 increased (p < 0.01) as the joint angle increased. Opposite results were obtained for the gastrocnemius and soleus (p < 0.05). These results indicate that joint position affects muscle proton diffusion.

Original languageEnglish
Pages (from-to)w208-w211
JournalAmerican Journal of Roentgenology
Volume194
Issue number2
DOIs
Publication statusPublished - Feb 2010

All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging

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