Pennington Biomedical Research Center, LSU System, Baton Rouge, LA, USA.
Louisiana State University, Baton Rouge, LA, USA.
Eur J Clin Nutr. 2022 Feb;76(2):251-260. doi: 10.1038/s41430-021-00938-x. Epub 2021 May 26.
Three-dimensional optical (3DO) imaging devices for acquiring anthropometric measurements are proliferating in healthcare facilities, although applicability in young children has not been evaluated; small body size and movement may limit device accuracy. The current study aim was to critically test three commercial 3DO devices in young children.
The number of successful scans and circumference measurements at six anatomic sites were quantified with the 3DO devices in 64 children, ages 5-8 years. Of the scans available for processing, 3DO and flexible tape-measure measurements made by a trained anthropometrist were compared.
Sixty of 181 scans (33.1%) could not be processed for technical reasons. Of processed scans, mean 3DO-tape circumference differences tended to be small (~1-9%) and varied across systems; correlations and bias estimates also varied in strength across anatomic sites and systems (e.g., regression Rs, 0.54-0.97, all p < 0.01). Overall findings differed across devices; best results were for a multi-camera stationary system and less so for two rotating single- or dual-camera systems.
Available 3DO devices for quantifying anthropometric dimensions in adults vary in applicability in young children according to instrument design. These findings suggest the need for 3DO devices designed specifically for small and/or young children.
用于获取人体测量学数据的三维光学（3DO）成像设备在医疗机构中日益普及，尽管尚未评估其在幼儿中的适用性；幼儿的身体较小且活动频繁，这可能会限制设备的准确性。本研究旨在对三种商业 3DO 设备在幼儿中的应用进行严格测试。
通过三种商业 3DO 设备对 64 名 5-8 岁儿童的 6 个体位进行了 181 次扫描，以量化成功扫描次数和周长测量值。对可用于处理的扫描数据，比较了 3DO 和经过培训的人体测量员使用柔性卷尺进行的测量。
由于技术原因，181 次扫描中有 60 次（33.1%）无法处理。在处理的扫描中，3DO-卷尺周长差异的平均值较小（~1-9%），且因系统而异；相关性和偏差估计值在不同的解剖部位和系统中也存在强度差异（例如，回归 Rs，0.54-0.97，均 p<0.01）。不同设备的总体结果存在差异；多摄像头固定系统的结果最佳，而两个旋转的单或双摄像头系统的结果则较差。
用于定量成人人体尺寸的现有 3DO 设备根据仪器设计，在幼儿中的适用性存在差异。这些发现表明需要专门为小儿童或幼儿设计 3DO 设备。
