正颌外科计算机辅助诊断、模拟手术及面像预测系统准确性研究

Accuracy of computerized aid diagnosis, surgical simulation and facial appearance prediction in orthognathic surgery

目的评价计算机专家预测系统的预测准确性及其临床应用的意义和价值。方法通过应用正颌外科专家预测系统（ｏｒｔｈｏｇｎａｔｈｉｃｓｕｒｇｅｒｙｐｒｅｄｉｃａｔｉｏｎｅｘｐｅｒｔｓｙｓｔｅｍ，ＯＳＰＥＳ）对临床３１例牙颌面畸形患者进行了术前诊断，模拟手术和面像预测。结果本系统能够较为准确的预测术后治疗效果，单颌手术平均总准确率达９５％以上，双颌手术达８５％以上。对硬组织预测较软组织预测更为准确。并对影响计算机专家预测系统准确性的因素等进行了讨论。结论计算机专家预测系统是正颌外科预测分析的有价值的工具。

Objective The purpose of this report is to evaluated the accuracy and potential advantages of the computer system in orthognathic surgery. Methods The accuracy of computer prediction was evaluated in 31 patients by using the orthognathic surgery predication expert system (OSPES) in the preoperative analysis, diagnosis, surgical simulation and preoperative facial appearance predication. Results This system could accurately predict the postoperative changing. The prediction accuracy for single jaw surgery was over 95%; double jaw 85%. The prediction for hard tissue was more accurate than that for soft tissue. Conclusion The results of this study suggest that computer system is an acceptable tool for facial appearance prediction.