鼓室硬化的颞骨HRCT表现与手术对照分析  

Temporal bone CT performance in tympanosclerosis with different ossicular chain lesions

作　　者：陈静[1] 郑艳[2] 

机构地区：[1]成都大学附属医院耳鼻咽喉科,成都610081 [2]四川大学华西医院耳鼻咽喉头颈外科,成都610041

出　　处：《中华耳科学杂志》2015年第3期501-503,共3页Chinese Journal of Otology

摘　　要：目的鼓室硬化的颞骨CT表现在不同听骨链病变程度下的特点分析。方法将手术确诊的111例鼓室硬化患者按听骨链的破坏程度分为A、B、C组,分别探讨对应的CT的特异性及非特异性表现。结果非特异表现A与B、C组的出现率差异有统计学意义(P<0.05),BC组之间差异无统计学意义(P>0.05)。CT对听骨链中断的漏诊率为51.61%。特异影像表现3组出现率差异无统计学意义(P>0.05),鼓膜钙化影平均出现率为59.46%,鼓室鼓窦钙化骨化影平均出现率仅为26.13%。结论鼓室硬化的术前CT表现大部分表现为非特异影像,各项非特异CT表现随听骨链的破坏程度加重出现率增高。特异性CT表现鼓室鼓窦的钙化或骨化影出现率较低,鼓膜钙斑的出现率较高。Objective To study temporal bone CT performance in diagnosing tympanosclerosis with various ossicular chain lesions. Methods One hundred eleven patients with surgically confirmed tympanosclerosis were divided into three groups based on their ossicular chain lesions, Their corresponding specific and nonspecific CT manifestations were studied and compared. Results Non-specific CT manifestations were different in Group A from Groups B and C（P〉0.05）, but not between Groups B and C（P〈0.05）. CT missed diagnosis of ossicular chain interruption in 51.61% of the cases. Regarding specific CT manifestations, there were no significant differences among the three groups. The rate of tympanic membrane calcification was 59.46%, and the rate of calcification/ossification in the epitympanum or autrum was 26.13% Conclusion Most pre-operative CT manifestations are nonspecific, which increase as ossicular chain lesions become increasingly severe. The rate of positive specific CT findings（including calcification/ossification） is low, although the rate of finding calcification in the tympanic membrane is relatively high.

关 键 词：鼓室硬化 听骨链病变 颞骨CT 

分 类 号：R445.3[医药卫生—影像医学与核医学]