Estimates of the precision of regional and whole body composition by dual-energy x-ray absorptiometry in persons with chronic spinal cord injury.
Estimates of the precision of regional and whole body composition by dual-energy x-ray absorptiometry in persons with chronic spinal cord injury.
复制标题
通过双能 X 射线吸收测定法对慢性脊髓损伤患者的局部和全身成分的精确度进行估计。
DOI：
10.1038/s41393-018-0079-x
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发表时间：
2018-10
期刊：
影响因子：
2.2
通讯作者：
Adler RA
中科院分区：
文献类型：
--
作者：
Gorgey AS;Cirnigliaro CM;Bauman WA;Adler RA
纵向设计目的：确定双能X线吸收法（DXA）全身扫描对脊髓损伤（SCI）患者全身和局部身体成分评估的可重复性。24名SCI患者通过在扫描之间重新定位研究参与者完成了一天内的短期精度测试。另外一个单独的22名SCI患者队列在GE-Lunar DXA扫描仪上扫描两次，间隔4周，以评估长期精度评估。计算区域和总体组成的均方根变异系数百分比（RMS-CV%）值。对于同一天的短期精密度评估，对于手臂、腿部、躯干、男性和女性区域以及总体重，每个区域的RMS-CV %分别不超过5. 6%、2. 7%、3. 8%、6. 5%、5. 8%和2. 3%。在长期精密度评估中，对于手臂、腿部、躯干、类男性、类女性和全身质量，每个区域的RMS-CV%不超过6.0%、3.0%、4.4%、8.2%、3.4%和2.0%。此外，长期精密度组的组间相关系数表明所有区域重复扫描之间具有良好的线性一致性（r> 0.97）。在我们的SCI队列中，全身成分变量的精确度误差与文献中报道的非残疾人相似，区域身体成分室的精确度误差明显较高，但与一般人群中报道的区域精确度误差相似。
Longitudinal design To determine the reproducibility of total- and regional-body composition assessments from a total-body scan using dual-energy x-ray absorptiometry (DXA) in persons with spinal cord injury (SCI). Twenty-four individuals with SCI completed within-day short-term precision testing by repositioning study participants between scans. An additional and separate cohort of 22 individuals with SCI were scanned twice on a GE-Lunar DXA scanner separated by a 4-week interval to assess the long-term precision assessment. The root mean square coefficient of variation percent (RMS-CV%) values for the regional and total body composition was calculated. For the same day, short-term precision assessment, the RMS-CV% for each region did not exceed 5.6%, 2.7%, 3.8%, 6.5%, 5.8% and 2.3% for arms, legs, trunk, android and gynoid regions and total body mass, respectively. In the long-term precision assessment, the RMS-CV% for each region did not exceed 6.0%, 3.0%, 4.4%, 8.2%, 3.4% and 2.0% for arms, legs, trunk, android, gynoid and total body mass. Moreover, the interclass-correlation coefficient in the long-term precision group demonstrated excellent linear agreement between repeat scans for all regions (r> 0.97). The precision error of the total body composition variables in our SCI cohort was similar to those reported in the literature for nondisabled individuals, and the precision errors of the regional body composition compartments were notably higher, but similar to the regional precision errors reported in the general population.
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影响因子：
1.7
作者：
Gorgey, Ashraf S.;Caudill, Caelb;Khalil, Refka E.
通讯作者：
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影响因子：
2.2
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作者：
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通讯作者：
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