软组织激光全息扫描鼻眶窝的三维数字图像分析

目的　介绍三维扫描仪在非接触条件下采集面部软组织精确数据的方法 ,为临床整形提供标准的鼻眶窝三维测量数据。方法　应用三维激光扫描仪和Geomagic软件 ,采集 12例标准汉族人的颜面轮廓 ,并对鼻眶窝进行数据测量和分析。结果　通过三维激光扫描和逆向工程软件可以再现出面部形态有意义的任一角度的三维图像 ,且精确度达到 0 0 1mm ,实验初步确定了鼻眶窝最低点的三维定位 ,描述了鼻眶窝的三维形态特征。结论　此方法可以全面反映鼻眶窝与周围结构形态学上的相互关系 ,三维激光扫描是实现术前设计、手术模拟和术后效果评价的新途径

3D image analysis of nasal orbit fossa through a laser scanner:a new method and application of 3D image data

OBJECTIVE: This study was to introduce the method for obtaining accurate 3D data of soft tissues using a 3D scanner under non-contact condition and the standard 3D measurement of the nasal orbit fossa for plastic surgery. METHODS: A 3D laser scanner and the Geomagic software were used to obtain the standard facial contour of 30 Chinese people. The nasal orbit fossa, as the feature of beauty, was measured and the data were analyzed. Results: 3D measurement exhibited the three-dimensional facial shape at every meaningful angle, with the advantages of high precision of 0.01 mm. We determined the lowest point and described the 3D feature of the nasal orbit fossa. CONCLUSIONS: This method can illustrate the relation of the nasal orbit fossa and the surrounding structure. It is a new approach to facilitate preoperative plans, operation simulation and postoperative evaluation.