山东大学耳鼻喉眼学报 ›› 2012, Vol. 26 ›› Issue (2): 46-48.

• 论文 • 上一篇    下一篇

HRCT最大密度投影对外伤后锤砧关节脱位诊断价值

于丽1,孙晓卫2,丁元萍3,窦芬芬2,赵秋良1   

  1. 1.山东大学附属济南市中心医院耳鼻喉科, 济南 250013; 2.山东大学齐鲁儿童医院耳鼻喉科, 济南 250022;
    3.山东大学齐鲁医院耳鼻咽喉头颈外科, 济南 250012
  • 收稿日期:2011-08-30 出版日期:2012-04-16 发布日期:2012-04-16
  • 通讯作者: 孙晓卫。 Email:sunxiaowei2000@163.com
  • 作者简介:于丽,副主任医师。 Email: zxxyyuli@163.com

Evaluation of MIP in HRCT  in Incudomalleolar Dislocation after injury

YU Li1, SUN Xiao-wei2, DING Yuan-ping3, DOU Fen-fen2, ZHAO Qiu-liang1   

  1. 1. Department of Otorhinolaryngology, Jinan Central Hospital Affiliated to Shandong University, Jinan  250013, China; 2. Department of Otorhinolaryngology, Qilu  Children′s  Hospital of Shandong University, Jinan 250022, China; 3. Department of Otorhinolaryngology & Head and Neck Surgery, Qilu Hospital of Shandong University, Jinan 250012, China
  • Received:2011-08-30 Online:2012-04-16 Published:2012-04-16

摘要:

目的   探讨高分辨率CT(HRCT)最大密度投影对外伤后锤砧关节脱位的诊断价值。方法   对10例(11耳)耳外伤后听力下降呈传导性聋患者行HRCT扫描,分别观察常规轴位、多平面重组冠状位及最大密度投影听骨链病变情况,并与手术结果比较。结果   耳部常规轴位显示锤砧关节脱位4耳;多平面重组冠状位显示3耳;最大密度投影轴位和冠状位均显示锤砧关节脱位6耳。术中探查见锤砧关节脱位6耳,砧镫关节脱位1耳,鼓膜穿孔7耳(3耳合并锤砧关节脱位)。锤砧关节脱位术前听力损失小于40dBHL的3耳未再行听骨链成形,另行人工听骨植入术3耳,砧镫关节脱位1耳,复位听骨,伴发鼓膜穿孔的3耳同时修补鼓膜。结论   HRCT最大密度投影对诊断外伤后锤砧关节脱位有重要价值。

关键词: 外伤;听骨链;X线,体层摄影术;高分辨率

Abstract:

Objective   To evaluate the diagnostic value of maximum intensity projection (MIP)in  high-resolution computed tomography (HRCT)in Incudomalleolar Dislocation after injury. Methods   10  patients  (11 ears) with traumatic head injury were scanned with HRCT, while the original data were processed with multiplanar reformations(MPR )and MIP. From the images generated by these techniques, the ossicular chain structure was observed and compared  with the findings in the operation. Results   Among the 10 patients(11 ears), incudomalleolar dislocations were well visualized in 4 ears on axial CT images, and  3 ears on Multiple Planar Reconstruction coronal CT images. 6 ears of incudomalleolar dislocation were identified by maximum intensity projection (MIP) both in axial and coronal CT images, which were further confirmed by the operation. During the surgery, there were 6 ears with incudomalleolar dislocation, 7 ears with tympanic membrane perforation(combined with incudomalleolar dislocation in 3 ears), and 1 ear with incudostapedial dislocation. Conclusion   Maximum intensity projection with high-resolution CT can improve the diagnosis of incudomalleolar dislocation.

Key words: Injury; Ossicular chain;  Tomography, X-ray computed; High resolution

中图分类号: 

  • R764.4
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