下颌神经管在曲面体层片与CBCT上的一致性评价
发布时间：2019-06-07 08:23
【摘要】：目的:本研究的目的是对比分析下颌神经管在数字化曲面断层片(PR)与锥形束CT(CBCT)上可见性的一致性,分析影响下颌神经管在影像上可见性的非病变因素。以期能为下颌区域手术提供临床指导意义。材料与方法:选取2013年12月至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,由两位放射科医师同时观察患者的CBCT片与曲面体层片。把CBCT及曲面体层片上左右两侧的下颌神经管从颏孔至下颌孔处平分为1、2、3、4四个区域,分为0、1、2、3四个等级分对下颌神经管的可见性进行评分。对下颌神经分支、副颏孔在曲面体层片及CBCT上出现的概率进行统计。结果:两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,区域4为2.630;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,区域4为2.538。越往后区域可见性越高。曲面体层片上,下颌神经分支的检出率是4.3%,副颏孔的检出率是0.54%;CBCT上,下颌神经分支的检出率是5.4%,副颏孔的检出率是3.8%。检验水准为P0.05。结论:CBCT显著提高了区域1部位下颌神经管在图像上的可见性。CBCT对下颌神经管的可见性显著高于曲面体层片。
[Abstract]:Objective: the purpose of this study was to compare and analyze the consistency of the visibility of mandibular neural tube on digital curved section (PR) and conical beam CT (CBCT), and to analyze the non-pathological factors affecting the visibility of mandibular neural tube on image. In order to provide clinical guidance for mandibular surgery. Materials and methods: from December 2013 to February 2014, 92 patients with CBCT and curved body films were taken at Huaxi Stomatological Hospital at the same time. CBCT and curved body films were observed by two radiologists at the same time. The visibility of mandibular nerve canal from mental foramen to mandibular foramen was divided into four regions, which were divided into 0, 1, 2 and 3 grades, and the visibility of mandibular nerve canal was scored by CBCT and curved body lamellae on the left and right sides of the mandibular nerve canal from the mental foramen to the mandibular foramen. The probability of mandibular nerve branches and accessory mental foramen on curved body lamellae and CBCT was counted. Results: the internal consistency test between the two physicians met the standard. On CBCT, the average score of area 1 was 2.120, area 2 was 2.337, area 3 was 2.533, area 4 was 2.630; On the surface slice, the average score of region 1 is 1.772, region 2 is 1.973, region 3 is 2.207, region 4 is 2.538. The more backward the visibility, the higher the visibility. The detection rates of mandibular nerve branches, accessory mental foramen, mandibular nerve branches and accessory mental foramen were 4.3%, 0.54%, 5.4% and 3.8%, respectively. The inspection level is P0.05. Conclusion: CBCT can significantly improve the visibility of mandibular neural tube in region 1, and the visibility of mandibular neural tube in CBCT is significantly higher than that in curved body slice.
【学位授予单位】：南昌大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：R783.6
[Abstract]:Objective: the purpose of this study was to compare and analyze the consistency of the visibility of mandibular neural tube on digital curved section (PR) and conical beam CT (CBCT), and to analyze the non-pathological factors affecting the visibility of mandibular neural tube on image. In order to provide clinical guidance for mandibular surgery. Materials and methods: from December 2013 to February 2014, 92 patients with CBCT and curved body films were taken at Huaxi Stomatological Hospital at the same time. CBCT and curved body films were observed by two radiologists at the same time. The visibility of mandibular nerve canal from mental foramen to mandibular foramen was divided into four regions, which were divided into 0, 1, 2 and 3 grades, and the visibility of mandibular nerve canal was scored by CBCT and curved body lamellae on the left and right sides of the mandibular nerve canal from the mental foramen to the mandibular foramen. The probability of mandibular nerve branches and accessory mental foramen on curved body lamellae and CBCT was counted. Results: the internal consistency test between the two physicians met the standard. On CBCT, the average score of area 1 was 2.120, area 2 was 2.337, area 3 was 2.533, area 4 was 2.630; On the surface slice, the average score of region 1 is 1.772, region 2 is 1.973, region 3 is 2.207, region 4 is 2.538. The more backward the visibility, the higher the visibility. The detection rates of mandibular nerve branches, accessory mental foramen, mandibular nerve branches and accessory mental foramen were 4.3%, 0.54%, 5.4% and 3.8%, respectively. The inspection level is P0.05. Conclusion: CBCT can significantly improve the visibility of mandibular neural tube in region 1, and the visibility of mandibular neural tube in CBCT is significantly higher than that in curved body slice.
【学位授予单位】：南昌大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：R783.6
【参考文献】
相关期刊论文 前10条
1 徐婉莲;王慧明;;数字化曲面体层摄影中颌弓长度及宽度对下颌后牙区影像垂直失真度的影响[J];口腔医学;2014年07期
2 张，
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