《Journal of Oral and Maxillofacial Surgery》 ›› 2013, Vol. 23 ›› Issue (6): 443-448. doi: 10.3969/j.issn.1005-4979.2013.06.009

• Clinical Study • Previous Articles     Next Articles

A Study of Multi-plane Aided Identifying Landmark on Three-dimensional CT Model

SHENG Xiao, Nie Ping, ZHU Min, Zhao Yan-hui, Xu Xiao-long, Tao li   

  1. Department of Oral and Cranio-maxillofacial Science, Ninth People's Hospital,
    College of Stomatology, School of Medicine, Shanghai Jiaotong University,
    Shanghai Key Laboratory of Stomatology, Shanghai 200011,China
  • Online:2013-12-28 Published:2014-05-14

多平面辅助定位法提高颅颌面三维CT测量准确性的研究

盛潇,   聂萍,   朱敏,   赵彦惠,   徐晓珑,   陶丽   

  1. 上海交通大学医学院附属第九人民医院口腔颅颌面科,上海市口腔医学重点实验室,上海   200011
  • 通讯作者: 朱敏,副主任医师. E-mail:zminnie@126.com
  • 作者简介:盛潇(1985—),男,山东菏泽人,硕士研究生.E-mail:shengxiao615@hotmail.com

Abstract: Objective: The purpose of this study was to establish a high-accuracy 3D measurement method for further clinical three-dimensional measurement of facial asymmetry. Methods: Using spiral CT system, 10 cases of facial asymmetry patients were scanned and three-dimensional models were reconstructed. 16 anatomical landmarks were selected on the three-dimensional CT models. SAS 8.02 was used for statistics. Results: Linear correlation coefficient and Zero intercept of the linear regression coefficient of all the 48 3D coordinates of 16 landmarks were within 0.99000-1.01000. Conclusion: 3D measurement method used in this study has high repeatability, which can be used in three-dimensional measurement on facial asymmetry patient.

Key words: craniofacial, model reconstruction, identifying landmark on three-dimensional CT model, three-dimensional measurement

摘要: 目的:建立一种较准确的三维头影测量定点方法,为面部不对称畸形的临床三维测量打下基础。方法:采用螺旋CT系统,对10例面部不对称畸形患者进行全头颅扫描,并进行CT影像三维重建,描绘测量16个相关解剖标志点。采用SAS8.02软件进行直线相关性和零截距直线回归分析,得到各标志点三维坐标的直线相关系数和零截距直线回归系数。结果:16个标志点的48个三维坐标数据的直线相关系数r、零截距直线回归系数b都在0.99000~1.01000以内。结论:本研究采用的三维测量方法具有较高的准确性和可重复性。该套定位要求及标志点,可以为面部不对称患者的硬组织形态特征改变研究提供参考。

关键词: 颅颌面部;  , 模型重建;  , 三维模型定点;  , 三维测量

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