2026-03-05T21:09:38Z https://kagawa-puhs.repo.nii.ac.jp/oai

oai:kagawa-puhs.repo.nii.ac.jp:02000007.6 2024-03-22T04:23:12Z 1:67:110:1710824507979

超音波エラストグラフィ検査における関心領域の設定が 僧帽筋の筋硬度測定に与える影響 Effect of the Region of Interest in Ultrasound Elastography Examination of Trapezius Muscle Stiffness 小河 佳織 大栗 聖由 樋本 尚志 Kaoru OGO Masayoshi OGURI Takashi HIMOTO open access 491.169,491.363,492.1 超音波エラストグラフィ,僧帽筋， region of interest（ROI：関心領域） ultrasound elastography, trapezius muscle, region of interest (ROI) 僧帽筋の硬さを超音波エラストグラフィ検査で測定した報告は散見されるものの，ストレインエ ラストグラフィ検査における僧帽筋内のregion of interest（ROI：関心領域）設定部位は統一され ていない．そこで，本研究ではROI を僧帽筋の厚み中央1/3 に設定した場合と僧帽筋全体に設定 した場合について比較を行い，より隣接組織の影響を受けにくく僧帽筋本来の硬さを反映した値が 求められる方法はどちらか検討を行った．若年成人女性24 名を対象とし，ストレインエラストグ ラフィ検査を用い2 種類のROI 設定についてそれぞれ硬さを表すstrain ratio を求めた．その結果， それぞれのstrain ratio と筋硬度計値，脂肪厚，筋厚との相関を検討すると，ROI を僧帽筋全体に 設定した場合に脂肪厚などの影響を受けることが分かった．また，ROI を筋全体に設定した時より も，僧帽筋の厚み中央1/3 に設定した時の方がstrain ratio は有意に高いという結果が得られた． 以上より，僧帽筋の硬さをストレインエラストグラフィ検査で測定する際には，ROI は隣接組織の 影響を受けにくい僧帽筋の中央1/3 に設定することが望ましいと考えられた． Although there are some reports on measuring the stiffness of the trapezius muscle by ultrasound elastography, the region of interest (ROI) has not been standardized. Therefore, in this study, two different ROIs were set: at the central 1/3 of the thickness of the trapezius muscle and the entire trapezius muscle. We then examined which method was less susceptible to the influence of adjacent tissues and could obtain values that reflected the original stiffness of the trapezius muscle. Twenty-four young adult females were included in the study. Using strain elastography, strain ratio, a measure of stiffness, was determined for each of the two ROI settings. The results showed that the correlation between each strain ratio and muscle stiffness values, fat thickness, and muscle thickness revealed that the ROI was affected by fat thickness and other factors when it was set to encompass the entire trapezius muscle. Additionally, the strain ratio was significantly higher when the ROI was set at the central 1/3 of the thickness of the trapezius muscle than when it was set at the entire muscle. This study suggests that when measuring trapezius muscle stiffness by strain elastography, it is recommended that the ROI be set at the central 1/3 of the trapezius muscle, which is less susceptible to the influence of adjacent tissues. 香川県立保健医療大学 2024-03-13 jpn article https://doi.org/10.50850/0002000007 https://kagawa-puhs.repo.nii.ac.jp/records/2000007 10.50850/0002000007 2758-7312 香川県立保健医療大学雑誌 Journal of Kagawa Prefectural University of Health Sciences 15 6 25 30 https://kagawa-puhs.repo.nii.ac.jp/record/2000007/files/15_025.pdf application/pdf 1.9 MB 2024-03-27