Department of Neonatology, Children's Hospital, Johann Wolfgang Goethe University, Frankfurt am Main, Germany.
Neonatology. 2011;100(3):260-4. doi: 10.1159/000327516. Epub 2011 Jun 22.
Body surface area (BSA) is usually estimated by calculation with mathematical formulae. Three-dimensional body scanning (3D scan) offers a suitable alternative.
We determined the BSA in healthy term and near-term neonates by 3D scanning. This system should be useful in the setting of intensive care medicine.
The measuring system consisted of a projector, two cameras, mirrors and a computer, and used the fringe projection technique with visible light. The infants were examined in a supine position; the hidden parts of the bodies were corrected for using a mathematical factor developed with a baby doll model. Results of the 3D scans were compared with those from five mathematical formulae for each subject.
A total of 209 infants were studied by 3D scanning, of whom 53 had acceptable images and were selected for further analysis. The mean BSA was 2,139 cm(2) (SD 223.72). The minimal BSA was 1,587 cm(2), the maximal 2,670 cm(2), with a good correlation to body weight and length. One mathematical formula (Du Bois and Du Bois) showed a distinct underestimation of BSA compared to 3D scanning, the others an overestimation. Mean percentage similarity was from 96.8 to 100.9%.
3D scanning is an accurate and practical method to estimate BSA in newborns. Individual and repeated measurements from day to day are possible. Further studies are warranted in preterm and sick neonates.
体表面积（BSA）通常通过数学公式计算来估计。三维身体扫描（3D 扫描）提供了一种合适的替代方法。
我们通过 3D 扫描确定健康足月和近足月新生儿的 BSA。该系统在重症监护医学中应该是有用的。
测量系统由投影仪、两个相机、镜子和计算机组成，使用可见光的条纹投影技术。婴儿以仰卧位进行检查；使用婴儿模型开发的数学因子校正身体的隐藏部分。将 3D 扫描的结果与每个受试者的五个数学公式的结果进行比较。
共有 209 名婴儿通过 3D 扫描进行了研究，其中 53 名婴儿的图像可接受，被选中进行进一步分析。平均 BSA 为 2139cm²（SD 223.72）。最小 BSA 为 1587cm²，最大 BSA 为 2670cm²，与体重和长度有良好的相关性。一个数学公式（Du Bois 和 Du Bois）与 3D 扫描相比，BSA 明显低估，其他公式则高估。平均相似度百分比为 96.8%至 100.9%。
3D 扫描是一种准确实用的方法，可以估计新生儿的 BSA。可以进行个体和每天重复测量。早产儿和患病新生儿需要进一步研究。
