应用三维CT扫描重建技术对假体隆鼻术后位移精确测量的方法探讨  

The Application of Three-dimensional CT Scan Reconstruction Technique to Measure the Displacement of Prosthetic Rhinoplasty

作　　者：侯萌萌 李惠晨 江从航 熊绍恒 宫海波 梁坤 易成刚 HOU Meng-meng;LI Hui-chen;JIANG Cong-hang;XIONG Shao-heng;GONG Hai-bo;LIANG Kun;YI Cheng-gang(Department of Plastic Surgery,Xijing Hospital Affi liated to Air Force Military Medical University,Xi’an 710032,Shaanxi,China;Department of Medical Aesthetics,First Affi liated Hospital of Xi'an Medical University,Xi’an 710032,Shaanxi,China;Ningbo Trando 3D Medical Technology Co.Ltd,Ningbo 315000,Zhejiang,China)

机构地区：[1]空军军医大学附属西京医院整形外科,陕西西安710032 [2]西安医学院第一附属医院医学美容科,陕西西安710032 [3]宁波创导三维医疗科技有限公司,浙江宁波315000

出　　处：《中国美容医学》2020年第3期66-70,共5页Chinese Journal of Aesthetic Medicine

基　　金：十三五国家重点研发计划“增材制造与激光制造”(编号:2018YFB1107105);陕西省重点研发计划-一般项目-社会发展领域(编号:2019SF036)。

摘　　要：目的:应用三维CT扫描重建技术,设计一种对于假体隆鼻术后精确位移测量的新方法。方法:以24周龄成熟新西兰兔为研究对象,以头部骨性标志为参考点,应用三维CT扫描重建技术,比较不同观察时间点与手术即刻假体的位移情况,从而得到术后假体的位移精确数据。结果:采用本实验方法精确测量到假体隆鼻术后不同观察时间的假体的位移数据,8只新西兰兔假体置入1个月后末端左侧偏移的平均值为4.271mm,鼻背末端右侧偏移的平均值为3.930mm,鼻背中段左侧偏移的平均值为3.683mm,鼻背中段右侧偏移的平均值为6.145mm,左右角度偏移平均值为11.281°,鼻尖距偏移平均值为0.893mm,鼻背厚度点1厚度变化的平均值为0.339mm,鼻背厚度点2厚度变化的平均值为0.311mm,鼻背厚度点3厚度变化的平均值为0.206mm。结论:应用三维CT扫描重建技术对假体隆鼻术后假体位移的测量提供了精确的研究方法,为评价不同假体材料、形状及手术方法对于假体位移的影响提供参考。Objective To create a new method to measure the displacement after prosthetic rhinoplasty. Methods 8 twentyfour-week-old New Zealand rabbits were used in the experiments. The three-dimensional CT scan reconstruction technique was applied at different time points after prosthetic rhinoplasty. Results Our method could be used to measure the displacement of prosthetic rhinoplasty. One month after the prosthesis was implanted in 8 New Zealand rabbits, the average value of the left deviation of the end was 4.271 mm, the average value of the right deviation of the end of the nasal dorsum was 3.930 mm, the average value of the left deviation of the middle of the nasal dorsum was 3.683 mm, the average value of the right deviation of the middle of the nasal dorsum was 6.145 mm, the average value of the left and right angle deviation was 11.281°, the average value of the tip distance deviation was 0.893 mm, and the average value of the thickness change of the point 1 of the nasal dorsum was 0.339 mm, the average thickness of point 2 was 0.311 mm, and the average thickness of point 3 was 0.206 mm. Conclusion It is an accurate method for measurement of the displacement after prosthetic rhinoplasty, using the threedimensional CT scan reconstruction technique and the method can be applied to evaluate the influence of different prosthetic materials and surgical methods on the displacement of the prosthesis.

关 键 词：隆鼻术 鼻假体 三维CT 位移测量 骨性标志 

分 类 号：R622[医药卫生—整形外科]