摘要
目的探讨基于10μm级耳科专用CT的正常前庭神经管影像解剖特征。方法回顾性收集2020年9月至2021年3月于首都医科大学附属北京友谊医院放射科接受10μm级耳科专用CT检查的67例(103侧)患者的资料,其中男24例,女43例,年龄18~70(40±17)岁。据前庭下神经管形态分为4型:均匀直管状、弯曲管状、壶腹状及直接连接。分析比较不同侧别、性别及形态间前庭上神经管指标(外口、峡部及内口宽径、神经管长度、与面神经迷路段的夹角)及前庭下神经管指标(外口及内口宽径、神经管长度、与前庭长轴及蜗轴的夹角)的差异。结果10μm级耳科专用CT对前庭上神经管清晰显示率为100%(103/103),对前庭下神经管清晰显示率为75.7%(78/103)。左侧前庭上神经管内口较右侧显著增宽[(1.46±0.47)mm比(1.31±0.41)mm]、前庭下神经管与蜗轴夹角显著减小[(41.6±16.9)°比(51.6±21.0)°](均P<0.05)。男性前庭上神经管内口较女性显著增宽[(1.55±0.37)mm比(1.28±0.36)mm](P<0.05)。均匀直管状前庭下神经管最常见(62.1%,64/103),其次为直接连接(19.4%,20/103),壶腹状最少见(4.9%,5/103)。不同形态前庭下神经管的外口宽径、与前庭长轴及蜗轴夹角的差异有统计学意义(均P<0.05)。结论10μm级耳科专用CT可清晰显示正常前庭神经管,对正常前庭神经管的定量测量可为该区病变的影像诊断及术前评估提供参考依据。
Objective To analysis the anatomical features of normal vestibular nerve canal based on 10μm otology CT.Methods Sixty-seven patients(103 ears)underwent 10μm otology CT examinations in Department of Radiology,Beijing Friendship Hospital,Capital Medical University from September 2020 to March 2021 were retrospectively recruited.There were 24 males and 43 females,aged from 18 to 70(40±17)years.According to the morphology of the inferior vestibular nerve canal,it can be divided into four types as follows:uniform straight type,curved type,ampullary type and direct connection.The anatomical variables of the superior vestibular nerve canal(external orifice,isthmus and internal orifice widths,canal length,angle with labyrinthine segment of the facial nerve)and inferior vestibular nerve canal(widths of the externaland internal orifice,canal length,angles with long axis of the vestibule and the modiolus)between the different sides,genders and canal morphologies were analyzed and compared,respectively.Results 100%superior vestibular nerve canals and 75.7%(78/103)inferior vestibular nerve canals are clearly depicted by otology CT.The left-side ear presented with larger internal orifice diameter of the superior vestibular neve canal[(1.46±0.47)mm vs(1.31±0.41)mm],and a smaller angle between the inferior vestibular neve canal and the modiolus[(41.6±16.9)°vs(51.6±21.0)°]than the right-side ear(all P<0.05,respectively),respectively.Compared to females,males demonstrated larger internal orifice of the superior vestibular nerve canal[(1.55±0.37)mm vs(1.28±0.36)mm,P<0.05].The uniform straight type of the inferior vestibular nerve canal was the most common type(62.1%,64/103),followed by the direct connection(19.4%,20/103),and the ampullary type was the least common type(4.9%,5/103).There were significant differences in external diameter and angles with the long axis of the vestibule and the modiolus between the four morphologies of the superior vestibular nerve canal(all P<0.05,respectively).Conclusion Tenμm otology CT i
作者
汤若薇
张征宇
赵鹏飞
吴倩
赵磊
徐宁
尹红霞
李静
杨正汉
龚树生
王振常
Tang Ruowei;Zhang Zhengyu;Zhao Pengfei;Wu Qian;Zhao Lei;Xu Ning;Yin Hongxia;Li Jing;Yang Zhenghan;Gong Shusheng;Wang Zhenchang(Department of Radiology,Beijing Friendship Hospital,Capital Medical University,Beijing 100050,China;Department of Otorhinolaryngology and Head&Neck Surgery,Beijing Friendship Hospital,Capital Medical University,Beijing 100050,China)
出处
《中华医学杂志》
CAS
CSCD
北大核心
2021年第47期3864-3869,共6页
National Medical Journal of China
基金
国家自然科学基金(61931013,61527807)
北京市自然科学基金(7212199)
北京学者([2015]160)。
关键词
体层摄影术
X线计算机
耳科专用CT
前庭神经管
颞骨
解剖
Tomography,X-ray computed
Otology computed tomography
Vestibular nerve canal
Temporal bone
Anatomy
