This study comprised two experiments: (1) the reliability of a novel optical three-dimensional (3D) volumetric measurement system (BODYTRONIC^® 600) for the assessment of lower limb circumference and volume; (2) the comparison of data obtained from BODYTRONIC^® 600 with that provided by computed tomography (CT) for accuracy estimation. Reliability was assessed in 20 healthy subjects. Accuracy was determined by comparing the deviations in the surface topology of two 3D models obtained from BODYTRONIC^® 600 and CT. Reliability was very high for leg circumference measures [coefficient of variations (CVs) range 0.3%–1.3%] and slightly lower for foot circumference (CVs around 2.0%). Reliability of leg volume was also found to be very high (CVs ≤ 2.5%). Differences in surface topology between BODYTRONIC^® 600 and CT were primarily below 1 mm indicating high accuracy. The volumes of the foot were higher (range 0.9%–1.7%) and that of the leg, lower (range 1.0%–1.3%) compared to CT. The BODYTRONIC^® 600 system provides fast, highly reliable and accurate measures of lower limb circumference and volume and can be considered as a valuable measurement tool for use in various research and clinical applications.

中文翻译：

---

测量下肢的周长和体积-引入新型光学3D体积测量系统。

该研究包括两个实验：（1）一种新的光学三维（3D）的体积测量系统（BODYTRONIC的可靠性^® 600），用于下肢周长和体积的评估; （2）从获得的BODYTRONIC数据的比较^®的准确性估计与通过计算机断层摄影（CT）提供600。在20名健康受试者中评估了可靠性。精度是通过在从BODYTRONIC获得的两个3D模型的表面拓扑结构比较所述偏差确定^®600和CT。腿围测量的可靠性非常高[变异系数（CV）范围在0.3％–1.3％]，而脚围测量的可靠性则略低（CV约为2.0％）。腿部容积的可靠性也很高（CV≤2.5％）。BODYTRONIC之间的表面拓扑结构的差异^® 600和CT主要是在1毫米以下指示精度高。与CT相比，脚的体积更大（范围为0.9％–1.7％），而腿的体积更低（范围为1.0％–1.3％）。该BODYTRONIC ^® 600系统提供了快速，下肢围和体积的高度可靠和准确的措施，可以看作是在各种研究和临床应用中的有价值的测量工具。