口腔医学研究

口腔医学研究 ›› 2017, Vol. 33 ›› Issue (3): 298-302.DOI: 10.13701/j.cnki.kqyxyj.2017.03.016

• 临床研究论著 • 上一篇    下一篇

下颌神经管在CBCT与曲面体层片上的一致性评价

谢晨1，吴润发1*，冯斌2，张显华1   

  1. 1. 南昌大学附属口腔医院种植科,江西省口腔生物医学重点实验室 江西 南昌 330006;
    2. 四川大学华西口腔医院 四川 成都 610041
  • 收稿日期:2016-09-08 出版日期:2017-03-20 发布日期:2017-03-22
  • 通讯作者: 吴润发,电话:0791-86363620
  • 作者简介:谢晨(1990~ ),女,江西赣州人,硕士,医师,主要从事口腔种植基础及临床研究工作。
  • 基金资助:
    江西省自然科学基金(编号:20151BAB205032,受理编号:20151512070285)

Visualization of the Mandibular Canal: a Consistency Evaluation using Digital Panoramic Radiographs and Cone-beam Computerized Tomography.

XIE Cheng1, WU Run-fa1*, FENG Bin2, ZHANG Xian-hua1.   

  1. 1. Stomatology Hospital, Nanchang University. Nanchang 330060, China;
    2. West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
  • Received:2016-09-08 Online:2017-03-20 Published:2017-03-22

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摘要： 目的:对比分析下颌神经管在CBCT与曲面体层片上可见性的一致性,探讨影响下颌神经管在图像上可见性的非病变因素。方法:选取2013年12月~2014年2月期间在华西口腔医院同时拍摄了CBCT与曲面体层片的患者92例,由2位放射科医师同时观察患者的CBCT片与曲面体层片。把CBCT及曲面体层片上的下颌神经管从颏孔至下颌升支前缘处平分为1、2、3三个区域,分为0、1、2、3四个等级的分对下颌神经管的可见性进行评分。结果:2位医师间的内部一致性检验符合标准。CBCT上,区域1平均得分为2.120,区域2为2.337,区域3为2.533;曲面体层片上,区域1平均得分为1.772,区域2为1.973,区域3为2.207。越往后区域可见性越高。结论:CBCT对下颌神经管的可见性显著高于曲面体层片,仅有1％的下颌神经管在曲面体层片上可见,在CBCT上不可见。下颌神经管的可见性与年龄呈相关性,年龄越大,可见性越低。

关键词: CBCT, 曲面体层片, 下颌神经管, 可见性

Abstract: Objective: To analyze the visualization consistency of mandibular canal on panoramic images and CBCT images, and to discuss the non-pathological factors influencing the visualization of mandibular canal. Methods: Using digital panoramic images and cone-beam computerized tomography images from 92 patients shooting in Hospital of Stomatology, Sichuan University during December 2013 to February 2014 and these images were evaluated by two radiologists. The mandibular canal was divided into 3 equal width areas from mental foramen to anterior border of ramus. The visibility of the mandibular canal borders was assessed using 4 point visibility scoring system, with lower scores for worse visibility. Results: The internal consistency inspection of two doctors conformed to the standard. In CBCT, average score of area 1 was 2.120, area 2 was 2.337, and area 3 was 2.533. In panoramic average, score of area 1 was 1.772, area 2 was 1.973, and area 3 was 2.207. Conclusion: CBCT remarkably improve the visualization of the mandibular canal in the area 1. The visualization of the mandibular canal in CBCT is significantly higher than in panoramic, while only 1％ of the mandibular canal in panoramic is visible and is invisible in CBCT. There is a close correlation between age and visualization, and the visualization gets poor with age.

Key words: Cone-beam computerized tomography , Digital panoramic radiographs, Mandibular canal, Visualization

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