摘要
目的探讨64层螺旋CT三维重建技术在颌骨内埋伏牙定位中的应用。方法对27例埋伏牙患者行64层螺旋CT扫描,通过容积再现、最大密度投影、多层面重建和曲面重建等技术对扫描图像进行后期处理,通过各种技术的综合应用,对颌骨内埋伏牙进行准确定位。结果 27例患者共有41颗埋伏牙。通过64层螺旋CT多种重建技术的组合应用,均得以清晰显示埋伏牙的位置、形态、大小、萌出方向及其与周围组织的关系,对选择正畸牵引还是外科手术治疗埋伏牙提供了依据。结论 64层螺旋CT扫描和后处理技术可提供埋伏牙位置的准确数据,为治疗方案的选择提供客观依据,具有重要的临床应用价值。
Objective To study the allocation of embedded teeth in jaws using the three-dimensional reconstruc-tion technique of 64-slices spiral CT.Methods 27 cases were examined by helical scanning of axial view volume scan CT.The exact localization of the embedded teeth in jaws was acquired by using volume rendering（VR）,maximum intensity projection（MIP）,multiplanar reformation（MPR） and curve plane reconstruction（CPR）.Results The localization,morphous,size,erupted orientation and relationship between surrounding tissues of the 41 embedded teeth in 27 patients were displayed by effectually using the images of VR,MIP,MPR and CPR.The election of or-thodontic treatment or surgical intervention was decided by using 64-slices spiral CT.Conclusion The exact data and objective evidence of the treatment plan could be provided by 64-slices spiral CT which will have important clinical application.
出处
《华西口腔医学杂志》
CAS
CSCD
北大核心
2010年第6期615-618,共4页
West China Journal of Stomatology
基金
上海市口腔医学重点实验室开放课题基金资助项目(S-30206)
关键词
64层螺旋CT
体层摄影术
多平面重建技术
埋伏牙
64-slices spiral CT
tomography
multiplanar reconstruction technique
embedded tooth
