Sobhiyeh Sima, Kennedy Samantha, Dunkel Alexander, Dechenaud Marcelline E, Weston Jerome A, Shepherd John, Wolenski Peter, Heymsfield Steven B
Metabolism-Body-Composition Pennington Biomedical Research Center LSU System Baton Rouge Louisiana USA.
Department of Mathematics Louisiana State University Baton Rouge Louisiana USA.
Obes Sci Pract. 2020 Nov 6;7(1):35-44. doi: 10.1002/osp4.467. eCollection 2021 Feb.
BACKGROUND/OBJECTIVE: Digital anthropometric (DA) assessments are increasingly being administered with three-dimensional (3D) optical devices in clinical settings that manage patients with obesity and related metabolic disorders. However, anatomic measurement sites are not standardized across manufacturers, precluding use of published reference values and pooling of data across research centers.
SUBJECTS/METHODS: This study aimed to develop universal 3D analysis software by applying novel programming strategies capable of producing device-independent DA estimates that agree with conventional anthropometric (CA) measurements made at well-defined anatomic sites. A series of technical issues related to proprietary methods of 3D geometrical reconstruction and image analysis were addressed in developing major software components. To evaluate software accuracy, comparisons were made to CA circumference measurements made with a flexible tape at eleven standard anatomic sites in up to 35 adults scanned with three different commercial 3D optical devices.
Overall, group mean CA and DA values across the three systems were in good agreement, with ∼2 cm systematic differences; CA and DA estimates were highly correlated (all -values <0.01); root-mean square errors were low (0.51-3.27 cm); and CA-DA bias tended to be small, but significant depending on anatomic site and device.
Availability of this software, with future refinements, has the potential to facilitate clinical applications and creation of large pooled uniform anthropometric databases.
背景/目的：在诊治肥胖及相关代谢紊乱患者的临床环境中，越来越多地使用三维（3D）光学设备进行数字人体测量（DA）评估。然而，各制造商之间的解剖测量部位并不统一，这使得已发表的参考值无法使用，也无法在各研究中心汇总数据。
受试者/方法：本研究旨在通过应用新颖的编程策略开发通用的3D分析软件，该软件能够生成与在明确解剖部位进行的传统人体测量（CA）结果一致的、不依赖设备的DA估计值。在开发主要软件组件时，解决了一系列与3D几何重建和图像分析的专有方法相关的技术问题。为评估软件准确性，对使用三种不同商用3D光学设备扫描的多达35名成年人在11个标准解剖部位用软尺进行的CA周长测量结果与DA测量结果进行了比较。
总体而言，三个系统的组平均CA和DA值吻合良好，系统差异约为2厘米；CA和DA估计值高度相关（所有P值<0.01）；均方根误差较低（0.51 - 3.27厘米）；CA - DA偏差往往较小，但因解剖部位和设备而异，具有显著性。
该软件若能进一步完善，有望促进临床应用并创建大型汇总统一人体测量数据库。
