儿童先天性畸形胸廓数字模型构建和缺损肋骨模板制作

Establishment of the digital model of congenital deformed thorax and rib defect templates

目的研究构建先天性胸廓畸形数字模型和制作缺损肋骨模板的方法，探讨数字模型在胸廓轮廓整形的应用前景。方法对2000年2月至2016年2月收治的22例胸廓畸形患者，应用64排螺旋CT行全胸连续薄层容积扫描，将扫描数据传至CT工作站后行三维重建，用Mimics17．0软件进行数据处理，建立全胸廓数字模型，再将模型数据传人3D打印机，打印后就可得到实体模型，通过镜像法处理，3D打印出手术用的正常肋骨模板。结果22例患者均建立了胸廓数字模型，通过3D打印得到了实体模型，并制作了11例的正常肋骨模板，其中Poland综合征5例，漏斗胸5例，肋骨缺损1例。结论通过Mimics17．0软件处理CT扫描数据，可以构建胸廓畸形的数字模型，通过3D打印可以获得实体模型，对未来个性化、精准化胸部轮廓整形具有重要的临床应用价值。

Objective To establish the three-dimensional digital model of congenital thoracic deformity and the rib defect templates. Methods 22 patients（ admitted from Feb 2000 to Feb 2016） with thoracic deformity all received continuous volumetric scanning of chest with 64 slice spiral CT and 3D model reconstruction was performed . The digital data were processed by the Mimics 17.0 software and the entity thoracic model could be made by 3D printers with these processed data. Digital normal thorax model was also reversed by the mirror method. Results These digital data models of 22 cases with thoracic deformity were established and entity models were gained by 3D printers. Normal ribs templates were made for 11 cases（5 Poland syndrome cases,5 funnel chest cases and 1 rib defect case）. Conclusions Digital model of thoracic deformity can be established by Mimics 17.0 software with processed CT scan data. 3D printers can be used to gain the entity models, which play the important role in designing accurate and personalized thoracic contour for plastic surgery in the future.