华西口腔医学杂志

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数字化可视下颌骨的初步研究

李宁毅1, 马彦博1, 谷芳2, 王钰3, 单涛2, 于仕超3, 李新照3   

  1. 1.青岛大学医学院附属医院口腔颌面外科, 山东青岛266003; 2.青岛大学医学院解剖教研室, 山东青岛266012; 3.青岛大学信息工程学院计算机应用教研室, 山东青岛266071
  • 收稿日期:2007-02-25 修回日期:2007-02-25 出版日期:2007-02-20 发布日期:2007-02-20
  • 通讯作者: 李宁毅,Tel:0532- 82911655
  • 作者简介:李宁毅(1942-),男,山东人,主任医师,教授
  • 基金资助:

    山东省科技厅基金资助项目(2003- 27)

Study of Digital Visual Mandible

LI Ning- yi1, MA Yan- bo1, GU Fang2, WANG Yu3, SHAN Tao2, YU Shi- chao3, LI Xin- zhao3   

  1. 1. Dept. of Oral and Maxillofacial Surgery, The Affiliated Hospital of Medical College, Qingdao University, Qingdao 266003, China; 2. Dept. of Anatomy, Medical College, Qingdao University, Qingdao 266012, China; 3. Dept. of Computer Application, College of Information Engineering, Qingdao University, Qingdao 266071, China
  • Received:2007-02-25 Revised:2007-02-25 Online:2007-02-20 Published:2007-02-20
  • Contact: LI Ning- yi,Tel:0532- 82911655

摘要:

目的建立数字化可视下颌骨的三维实体模型。方法将1例人体标本固定、灌注、冷冻、包埋、切削,选取从颏部到下颌骨髁突图像,通过摄像采集数据,描取每层下颌骨的皮质骨外形、牙齿及牙槽窝轮廓线及下颌管,各层轮廓线均形成闭合曲线。利用Amira软件系统进行下颌骨的外形及下颌管的重建,得到三维线框模型和实体模型。结果利用数字人数据得到下颌骨精细的三维模型,在三维空间上真实再现了下颌骨、下颌牙的解剖形态,并准确地显示出下颌神经管的位置。结论采用软件重建方法获得的下颌骨三维模型,为下颌骨的影像诊断及正颌外科手术治疗、下颌牙齿种植等提供了解剖学依据。

关键词: 下颌骨, 三维重建, 数字化可视化

Abstract:

Objective To build a digital visible model of the mandible in order to provide morphological data for image diagnosis and operation of mandible diseases. Methods A male adult cadaver specimen was taken for the purpose of study. A digital human databank was got after fixation, perfusion, refrigeration, embedding, section and photograph of the specimen. The thickness of each layer was 0.1 mm. To select mandible image data from chin to condyle and to draw an outline of mandible and teeth image of each layer in 2D Adobe photoshop 8.0. Finally, reconstruct 3D model of mandible was set up in Amira reconstruction software. Results A 3D model of mandible was formed accurately using of digital human data. The model was fine, visible and displayed cross - section image of mandible. The anatomical shape of mandible and mandibular teeth were vividly reappeared in three- dimension. The location and trend of mandibular nerve canal were clearly appeared in the transparent model of mandible. The model could be revolved in 3D. Conclusion The study got a complete and exact cross- section data. The visualization of mandible can be realized in Amira reconstruction software. The reconstituted organs can be recovered to the natural state.

Key words: mandible, three dimension reconstruction, digital visual