Correlation between single-slice muscle anatomical cross-sectional area and muscle volume in thigh extensors, flexors and adductors of perimenopausal women
Correlation between single-slice muscle anatomical cross-sectional area and muscle volume in thigh extensors, flexors and adductors of perimenopausal women
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DOI：
10.1007/s00421-010-1477-8
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发表时间：
2010-09-01
影响因子：
3
通讯作者：
Eckstein, F.
中科院分区：
文献类型：
--
作者：
Cotofana, S.;Hudelmaier, M.;Eckstein, F.
肌肉体积（MV）的定量数据对于估计最大肌力是很重要的。本研究的目的是确定围绝经期妇女大腿肌肉（伸肌、屈肌、内收肌和缝阔肌）的解剖横截面积（ACSA）与MV之间的相关性，并确定磁共振成像（MRI）单片ACSA测量在哪个近端到远端水平显示出最高的相关性。41例围绝经期妇女，年龄50.8±3.2岁，进行了大腿轴向mri检查。在股骨颈（0%）和股中间远端（100%）之间进行伸肌、屈肌、内收肌和缝匠肌的分割。mv采用数值积分法确定，ACSA由近端到远端间隔10%的三维重建计算。伸肌占总大腿MV的50%，屈肌占19%，内收肌占28%，缝匠肌占3%。ACSA和MV的最大相关性分别在伸肌近端至远端水平的20-40% (R(2) = 0.73)，内收肌的30% (R(2) = 0.82)，屈肌和缝匠肌的70% （R(2) = 0.72）和缝匠肌（R(2) = 0.85）。所有肌肉群的ACSA在50%时显示出最高的总体相关性（R (2) a /千日元0.69）。MRI单排acsa显示与mv高度相关。尽管（近端到远端）测量位置在肌群之间具有最高的相关性，但50%位置的单片在伸肌、屈肌、内收肌和缝阔肌之间的ACSA和MV相关性方面取得了最好的折衷。
Quantitative data on muscle volume (MV) are important for estimating maximal muscle power. The objective of this study was to determine the correlation between anatomical cross-sectional areas (ACSAs) and the MV in thigh muscles (extensors, flexors, adductors, and sartorius) in perimenopausal women, and to identify at which proximal-to-distal level a single-slice ACSA measurement with magnetic resonance imaging (MRI) displays the highest correlation in each of these. Axial MRIs of the thigh were acquired in 41 perimenopausal women aged 50.8 +/- A 3.2 years. Segmentation of the extensors, flexors, adductors, and the sartorius was performed between the femoral neck (0%) and the distal end of the intermediate vastus (100%). MVs were determined by numerical integration, and the ACSA was calculated from three-dimensional reconstructions at 10% intervals from proximal to distal. The extensors contributed 50%, the flexors 19%, the adductors 28%, and the sartorius 3% of the total thigh MV. Maximal correlations between ACSA and MV were observed at the 20-40% proximal-to-distal level in the extensors (R (2) = 0.73), at 30% in the adductors (R (2) = 0.82), and at 70% in the flexors (R (2) = 0.72) and sartorius (R (2) = 0.85), respectively. ACSA at 50% displayed the highest overall correlations (R (2) a parts per thousand yen 0.69) with MV for all muscle groups. Single-slice ACSAs from MRI displayed high correlations with MVs. Although the (proximal to distal) measurement locations with the highest correlation varied between the muscle groups, a single slice at the 50% location achieved the best compromise in terms of correlation between ACSA and MV across extensors, flexors, adductors and the sartorius.