应用CT三维重建对正常人群耳蜗方位和盘曲模式的研究

发布时间：2018-06-04 15:31

本文选题：耳蜗解剖 + 耳蜗方位　；参考：《临床耳鼻咽喉头颈外科杂志》2014年10期

【摘要】：目的:运用CT三维重建等影像手段对正常人群耳蜗进行形态学研究,为指导内耳畸形的诊断及人工耳蜗植入等内耳手术的术前评估提供理论依据。方法:收集100例(200耳)排除内耳解剖异常的患者作为研究对象,依年龄分为5组,利用计算机工作站的3D立体重建和2D多平面重建技术对其耳蜗基底部的长和宽、底周内最长直线距离、耳蜗的高度、第一周和第二周之间的角度及正中矢状面与底周间夹角等结构进行系统测量,统计分析以上各结构指标在不同年龄组、性别、左右耳之间的差异。结果:耳蜗基底部的长为(8.56±0.52)mm、宽为(6.63±0.56)mm、底周内最长直线距离为(7.33±0.56)mm、耳蜗的高度为(3.76±0.28)mm、第一周和第二周之间的角度为(15.82±2.78)°。以上所有指标在不同年龄、性别及左右耳间差异无统计学意义(P0.05)。正中矢状面与耳蜗底周间角度在各年龄组间差异有统计学意义,该角度随着年龄的增长而缩小(P0.05)。第一和第二周之间的角度在各年龄组内存在变异,提示耳蜗的盘曲模式在个体间差异明显。结论:3D和2D多平面重建技术能准确评价内耳形态结构,测定国人耳蜗各主要结构的正常值,可为临床诊断及人工耳蜗等内耳手术治疗提供重要的参考依据。
[Abstract]:Objective: To study the morphological study of the cochlea in normal population by CT three-dimensional reconstruction, and provide a theoretical basis for the diagnosis of internal ear malformation and the preoperative evaluation of the cochlear implant surgery. Methods: 100 cases (200 ears) were collected and divided into 5 groups according to age. The length and width of the basal part of the cochlea, the longest straight distance in the bottom of the cochlea, the height of the cochlea, the angle between the first and second weeks, the angle between the first and the second weeks, and the angle of the median sagittal plane and the angle between the bottom of the cochlea were systematically measured by the 3D stereoscopic reconstruction of the workstation and the 2D multiplanar reconstruction. Results: the length of the basal part of the cochlea was (8.56 + 0.52) mm, the width was (6.63 + 0.56) mm, the longest line distance in the bottom was (7.33 + 0.56) mm, the cochlear height was (3.76 + 0.28) mm, and the angle between the first and second weeks was (15.82 + 2.78) degrees. There was no significant difference between the sex and the left and right ears at the different ages (P0. 05). The difference between the median sagittal plane and the angle of the cochlea between the age groups is statistically significant, and the angle decreases with age (P0.05). The angle between the first and the second weeks varies in all age groups, suggesting that the cochlear pattern in the cochlea is distinct between individuals. Conclusion: the 3D and 2D multiplanar reconstruction techniques can be accurately evaluated. The inner ear morphology and structure can be used to determine the normal values of the main structures of the cochlea in Chinese. It can provide important reference for clinical diagnosis and cochlear implant surgery.
【作者单位】：中国医科大学附属第一院耳鼻咽喉科;中国医科大学附属第一院影像科;
【基金】：辽宁省科学技术计划项目(No:2013225049)
【分类号】：R764.73

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