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耳硬化症的高分辨率CT表现
引用本文:常青林,王振常,鲜军舫,满凤媛,胡凌. 耳硬化症的高分辨率CT表现[J]. 中华放射学杂志, 2009, 44(11): 623-625. DOI: 10.3760/cma.j.issn.1005-1201.2010.06.015
作者姓名:常青林  王振常  鲜军舫  满凤媛  胡凌
作者单位:首都医科大学附属北京同仁医院放射科,100730;
基金项目:北京市自然科学基金北京市科技新星计划项目资助
摘    要:目的 探讨耳硬化症的HRCT表现特征.方法 回顾性分析34例61耳临床诊断明确的耳硬化症的HRCT表现.结果 55耳HRCT表现耳囊骨密度减低区,6耳HRCT未发现异常.HRCT表现异常的55耳中,6耳仅表现为前庭窗前方耳囊低密度区,6耳表现为前庭窗前方耳囊低密度区、镫骨底板增厚及耳蜗周围低密度区,11耳表现为前庭窗前方耳囊低密度区、前庭窗后方低密度区及镫骨底板增厚,20耳表现为前庭窗前方耳囊低密度区和镫骨底板增厚,10耳表现为前庭窗前方耳囊低密度区及耳蜗周围耳囊低密度影,2耳仪表现为耳蜗周围耳囊低密度区.结论 HRCT可显示耳囊骨质及镫骨底板异常,有助于进一步证实耳硬化症诊断.

关 键 词:耳硬化症   颞骨   体层摄影术,X线计算机   

High-resolution CT findings of otosclerosis
CHANG Qing-lin,WANG Zhen-chang,XIAN Jun-fang,MAN Feng-yuan,HU Ling. High-resolution CT findings of otosclerosis[J]. Chinese Journal of Radiology, 2009, 44(11): 623-625. DOI: 10.3760/cma.j.issn.1005-1201.2010.06.015
Authors:CHANG Qing-lin  WANG Zhen-chang  XIAN Jun-fang  MAN Feng-yuan  HU Ling
Abstract:Objective To evaluate HRCT features of otosclerosis.Methods HRCT findings of 61 ears with the diagnosis of otosclerosis based on clinical diagnostic criteria in 34 patients were evaluated retrospectively.Results Hypodense regions in the bony otic capsule were found on HRCT in 55 ears and no abnormality was identified on HRCT in 6 ears.In 55 ears with abnormal HRCT findings, HRCT demonstrated the hypodense region of bony otic capsule anterior to oval window alone in 6 ears, the hypodense region anterior to oval window associated with thicked stapedial footplate and pericochlear hypodensity in 6 ears, the hypodense region anterior to oval window associated with thicked stapedial footplate and hypodensity posterior to oval window in 11 ears, the hypodense region anterior to oval window associated with thicked stapedial footplate in 20 ears, the hypodense region anterior to oval window associated with pericochlear hypodensity in 10 ears, and pericochlear hypodensity in the bony otic capsule alone in 2 ears.Conclusion HRCT can detect abnormalities in the bony otic capsule and the stapedial footplate,contributing to confirming diagnosis of otosclerosis.
Keywords:OtosclerosisTemporal boneTomography  X-ray computed
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