HRCT对鼓室硬化术前诊断的价值

王燕玲;秦兆冰;李素娟;陈秀兰;

1:郑州大学第一附属医院耳科

摘要

目的探讨高分辨率CT(HRCT)对鼓室硬化术前诊断的价值。方法将确诊的62例鼓室硬化患者的HRCT表现与术中所见实际情况对比。结果 33例HRCT表现为鼓窦及入口、上中鼓室的异常硬化灶或密度不均的高密度影,听骨链结构紊乱或被硬化灶包裹为主,10例仅表现为穿孔鼓膜的增厚钙化,鼓室内未发现钙化灶,这43例HRCT表现与术中探查情况和术前诊断一致;8例诊断为其他疾病(误诊),其中胆脂瘤合并硬化4例,粘连性中耳炎合并硬化3例,慢性分泌性中耳炎合并硬化1例,影像学表现均以软组织影或听骨链及骨质破坏为主;漏诊11例,其中9例因传导性聋行手术探查,2例为单纯鼓膜钙化,这11例HRCT均无明显异常。结论颞骨HRCT对明确鼓室硬化的术前诊断及病变范围很有价值的同时也存在一定局限性。

关键词

鼓室硬化;颞骨HRCT;术前诊断

基金项目(Foundation):

作者

王燕玲;秦兆冰;李素娟;陈秀兰;

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