X射线及CT三维重建测量在颌面部整形修复中的应用

Application of X-ray and CT three-dimensional reconstruction measure to reshaping and repair of maxillofacial region

背景:颌面骨是面部软组织附丽的基础,人的个体又不尽相同。因此,研究各种测量能精确全面地描述颌面部测量方法是十分必要的。目的:对比X射线及三维CT测量在颌面部整形修复中的应用进展。方法:应用计算机检索PubMed数据库及CNKI数据库,在标题和摘要中以"颌面部,骨组织,三维重建测量法"或"maxillofacial,bone tissue,measurement of three-dimensional reconstruction"为检索词进行检索。最终纳入符合标准的文献23篇。结果与结论:X射线三维测量法的优点是:价格低廉,放射剂量相对较低,数据获取时间相对较短,但有标志点定点的可分辨性较差等缺陷。CT三维重建测量法的优点:测量内容全面,准确性和精密度,方法可靠,可重复,应用方向广泛;但费用相对较高,检查所需时间相对于传统平片检查仍较长,目前临床上作CT扫描时患者所接受的辐射剂量仍比X射线平片检查所受的辐射剂量要多。

BACKGROUND：Maxillofacial bone is the basis of facial soft tissue,and different in the individuals. It is necessary to study various measure methods to precisely measure maxillofacial region. OBJECTIVE：To compare application progress of X-ray and three-dimensional CT measure in reshaping and repair of maxillofacial region. METHODS：We retrieved PubMed Database and China National Knowledge Infrastructure. The were ＂maxillofacial,bone tissue,measurement of three-dimensional reconstruction＂ and searched in title and abstract. Finally 23 articles were included. RESULTS AND CONCLUSION：The advantage of X-ray three-dimensional measure was as follows：low price,low radiation dose,short data collection time;shortcoming was as follows：poor resolvability of mark point and fixed point. The advantage of CT three-dimensional measure was as follows：full measure content,high accuracy and precision,reliable method,repeatable,and extensive application;however,the cost was high,and the duration of examination was relatively longer compared with traditional plain film. At present,the radiation dose was more in patients receiving CT scanning compared with X-ray plain film.