镫骨形态及其模拟病变的Micro-CT观察  

Observation of human stapes and simulated stapedial lesion based on Micro-CT scanning

作　　者：赵晓畅 解佼佼 于子龙[1] ZHAO Xiaochang;XIE Jiaojiao;YU Zilong(Department of Otolaryngology Head and Neck Surgery,Beijing Tongren Hospital,Capital Medical University,Beijing,100730,China;Department of Otolaryngology Head and Neck Surgery,Beijing Luhe Hospital,Capital Medical University)

机构地区：[1]首都医科大学附属北京同仁医院耳鼻咽喉头颈外科,北京100730 [2]首都医科大学附属北京潞河医院耳鼻咽喉头颈外科

出　　处：《临床耳鼻咽喉头颈外科杂志》2019年第7期662-665,669,共5页Journal of Clinical Otorhinolaryngology Head And Neck Surgery

摘　　要：目的:了解镫骨形态及与其相关模拟病变的影像学表现,为相关研究提供资料。方法:取经甲醛溶液固定的6具(颞骨12侧)成人尸头,其中1具尸头(2侧颞骨)于显微镜下分别做镫骨足板穿孔、断裂模型,对其余5具(10侧)颞骨做镫骨形态学测量。取出颞骨(12侧),行Micro-CT扫描,应用Mimics 17.0等软件行二维、三维结构重建。结果:①镫骨形态学观察:镫骨头、前后脚、足板及毗邻结构的二维结构显示清晰;三维重建后可以清晰显示镫骨头关节面、镫骨头倾斜方向及前后脚的大小。②镫骨相关结构定量观察及统计学分析,镫骨高度:左侧(3.32±0.22)mm、右侧(3.35±0.21)mm;镫骨头高度:左侧(1.11±0.28)mm、右侧(1.09±0.30)mm;前脚长度:左侧(3.45±0.24)mm、右侧(3.35±0.26)mm;后脚长度:左侧(3.35±0.33)mm、右侧(3.27±0.28)mm;闭孔纵径:左侧(2.03±0.25)mm、右侧(2.01±0.23)mm;闭孔横径:左侧(1.82±0.30)mm、右侧(1.79±0.24)mm;足板长度:左侧(2.56±0.22)mm、右侧(2.58±0.26)mm;足板宽度:左侧(1.33±0.33)mm、右侧(1.33±0.28)mm。上述测量结果左右侧比较差异无统计学意义(P>0.05)。③镫骨模拟病变的Micro-CT观察及与高分辨率CT比较,Micro-CT可清晰显示镫骨足板穿孔、断裂等模拟病变。结论:Micro-CT可以准确、清晰地显示镫骨结构、形态及模拟病变(模型),为相关研究提供了重要参考资料和方法。Objective:The aim of this study is to understand the imaging morphology of the humerus morphology and its associated simulated lesions,and to provide information for related research.Method:Six adult cadaveric heads fixed by formaldehyde solution(12 sides of the tibia)were used.One of the cadaveric heads(two sides of the tibia)was perforated and fractured under the microscope.The remaining 5(10 sides)were used.The humerus was used for morphological measurements of the tibia.The tibia(12 sides)was taken out,Micro-CT scan was performed,and two-dimensional and three-dimensional reconstruction were performed using software such as Mimics 17.0 software.Result:①Stapedial morphologic observation:the head,curs and footplate of the stapes and the adjacent structures can be well displayed on two dimensional structures.②Quantitative measurements and statistics:There were no significant statistic differences about the data that had been measured between the right ears and the left ears(P>0.05).③Micro-CT was more clearly in displaying the precise structure of human stapes and the stapedial minute lesion comparing with that of HRCT.Conclusion:Micro-CT can accurately and clearly display the structure,morphology and simulated lesions(model)of the tibia,which provides important reference materials and methods for related research.

关 键 词：MICRO-CT 镫骨 三维结构重建 

分 类 号：R764.3[医药卫生—耳鼻咽喉科]