Inspiratory motion analysis by Realignment processing of chest images with low magnetic field MRI device

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  • 低磁場MRI装置による胸部画像のRealignment処理による呼吸運動解析
  • テイジバ MRI ソウチ ニ ヨル キョウブ ガゾウ ノ Realignment ショリ ニ ヨル コキュウ ウンドウ カイセキ

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Abstract

Analyses of diaphragm and chest wall motions are good indicators to evaluate clinical status and pulmonary function before and after the surgery in the respiratory disease. Recently noninvasive MR images using fast gradient recalled echo techniques have been paid much attention to assess the inspiratory motions. However it is laborious to analyze a large number of dynamic MR images. Therefore, we performed the movement analyses of chest images with a low magnetic field MR device by using a public domain software Realignment in SPM(Statistical Parametric Mapping) which is commonly used for brain functional MRI analyses. On a glue stick phantom and normal volunteers, the dynamic MR images were numerically analyzed by the translation to each axes and the results showed that the SPM Realignment is a useful tool for screening on the magnitude and the characteristic of inspiratory motions.

Journal

  • 医療工学雑誌

    医療工学雑誌 (1), 1-8, 2007-03-15

    広島国際大学大学院総合人間科学研究科医療工学専攻

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