(P15-036-24) Accurate Prediction of Anthropometric Body Dimensions by 3D Optical Imaging Versus a High-Resolution 3D Laser Scanner

Objectives: Increasing interest is focusing on clinically-useful measurements that go beyond body mass index (BMI) in predicting a person’s body composition and health risks. One relatively new approach is 3D imaging for digital anthropometry with scanners ranging from large stationary devices to smartphones. High-resolution laser scanners (HRLS) are costly and sometimes require facility renovations. Can equivalent anthropometric data be acquired with a lower-cost, smaller footprint 3D optical (3DO) scanner?

Methods: 102 healthy adult participants ranging in BMI (17-45 kg/m2) completed the protocol including HRLS (Vitus Smart XXL; Human Solutions North America, Cary, NC) and 3DO (SS20; Size Stream, Cary, NC). Acquired digital avatars were analyzed for circumferences (C) and regional and total volumes with corresponding surface areas using the same software. Comparisons of 3DO to HRLS included X±SD, correlations, root-mean square (RMSE) and mean absolute errors (MAE, X±SE), and bias analyses.

Results: There was close agreement between all 3DO and HRLS digital anthropometric measurements including, as examples, waist C [92.0±14.6 vs. 90.2±14.6 cm, p=NS; R2, 0.93; RMSE, 4.1; MAE, 3.0±2.8 cm); non-significant bias], hip C [104.4±9.0 vs. 104.3±9.1 cm, p=NS; R2, 0.87; RMSE, 3.3; MAE, 1.7±2.8 cm], and waist C/hip C [0.88±0.08 vs. 0.86±0.08, p=NS; R2, 0.77; RMSE, 0.04; MAE, 0.030±0.032; non-significant bias).

Conclusions: The evaluated 3DO scanner, capable of rapidly quantifying multiple body surface features, can serve as an alternative to HRLSs as a means of acquiring clinically relevant anthropometric measurements in research and clinical settings.

Funding Sources: Funded by a NIH/NIDDK grant