Standardized Ultrasound Measurement of Subcutaneous Fat Patterning: High Reliability and Accuracy in Groups Ranging from Lean to Obese

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• 作者：Paul Stö ; rchle^&lowast ; ; Wolfram Mü ; ller^&lowast ; ; ^{wolfram.mueller@medunigraz.at} ; Marietta Sengeis^&lowast ; ; Helmut Ahammer^&lowast ; ; Alfred Fü ; rhapter-Rieger^&lowast ; ; Norbert Bachl^&dagger ; ; Sonja Lackner^&Dagger ; ; Sabrina Mö ; rkl^§ ; ; Sandra Holasek^&Dagger ;
• 关键词：Body composition ; Subcutaneous adipose tissue ; Overweight ; Obesity ; Ultrasound measurement precision
• 刊名：Ultrasound in Medicine & Biology
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：43
• 期：2
• 页码：427-438
• 全文大小：1676 K
• 卷排序：43

文摘

A recently standardized ultrasound technique for measuring subcutaneous adipose tissue (SAT) was applied to normal-weight, overweight and obese persons. Eight measurement sites were used: upper abdomen, lower abdomen, erector spinae, distal triceps, brachioradialis, lateral thigh, front thigh and medial calf. Fat compression was avoided. Fat patterning in 38 participants (body mass index: 18.6–40.3 kgm−2; SAT thickness sums from eight sites: 12–245 mm) was evaluated using a software specifically designed for semi-automatic multiple thickness measurements in SAT (sound speed: 1450 m/s) that also quantifies embedded fibrous structures. With respect to ultrasound intra-observer results, the correlation coefficient ρ = 0.999 (p < 0.01), standard error of the estimate = 1.1 mm and 95% of measurements were within ±2.2 mm. For the normal-weight subgroup, the median measurement deviation was 0.43 mm (1.1% of mean thickness), and for the obese/overweight subgroup it was 0.89 mm (0.5%). The eight sites used here are suggested to represent inter-individual differences in SAT patterning. High measurement accuracy and reliability can be obtained in all groups, from lean to overweight and obese, provided that measurers are trained appropriately.