中国眼耳鼻喉科杂志
中國眼耳鼻喉科雜誌
중국안이비후과잡지
CHINESE JOURNAL OF OPHTHALMOLOGY AND OTOLARYNGOLOGY
2009年
4期
218-220,附1
,共4页
耳硬化%体层摄影术,X线计算机%光密度测定法%测听法
耳硬化%體層攝影術,X線計算機%光密度測定法%測聽法
이경화%체층섭영술,X선계산궤%광밀도측정법%측은법
Otosclerosis%Tomography,X-ray computed%Densitometry%Audiometry
目的 探讨高分辨率颞骨CT密度在诊断耳硬化中的作用.方法 分析手术确诊的耳硬化患者34例(34耳,病例组)和同期确诊的周围性面瘫患者33例(对侧正常耳33耳,对照组)的颞骨CT扫描和纯音听阈测试结果.在0.75 mm层厚颞骨CT轴位层面的耳囊周围,手动设置7个兴趣区,测量平均CT值.根据CT表现将耳硬化病例分为2个亚组:A组,CT显示无病理变化;B组,耳蜗区骨密度降低.比较各兴趣区病例组与对照组平均CT值的差异,分析病例组CT表现与纯音测听结果的关系.结果 卵圆窗后缘和卵圆窗前缘这两个兴趣区,病例组平均CT值明显低于对照组(卵圆窗后缘t=-2.030,P=0.046;卵圆窗前缘Z=-4.979,P<0.01).A组30例,包括传导性聋9例(30%),混合性聋21例(70%);B组4例,包括传导性聋1例(25%),混合性聋3例(75%).结论 耳硬化患者卵圆窗周围骨质CT密度可能发生改变.
目的 探討高分辨率顳骨CT密度在診斷耳硬化中的作用.方法 分析手術確診的耳硬化患者34例(34耳,病例組)和同期確診的週圍性麵癱患者33例(對側正常耳33耳,對照組)的顳骨CT掃描和純音聽閾測試結果.在0.75 mm層厚顳骨CT軸位層麵的耳囊週圍,手動設置7箇興趣區,測量平均CT值.根據CT錶現將耳硬化病例分為2箇亞組:A組,CT顯示無病理變化;B組,耳蝸區骨密度降低.比較各興趣區病例組與對照組平均CT值的差異,分析病例組CT錶現與純音測聽結果的關繫.結果 卵圓窗後緣和卵圓窗前緣這兩箇興趣區,病例組平均CT值明顯低于對照組(卵圓窗後緣t=-2.030,P=0.046;卵圓窗前緣Z=-4.979,P<0.01).A組30例,包括傳導性聾9例(30%),混閤性聾21例(70%);B組4例,包括傳導性聾1例(25%),混閤性聾3例(75%).結論 耳硬化患者卵圓窗週圍骨質CT密度可能髮生改變.
목적 탐토고분변솔섭골CT밀도재진단이경화중적작용.방법 분석수술학진적이경화환자34례(34이,병례조)화동기학진적주위성면탄환자33례(대측정상이33이,대조조)적섭골CT소묘화순음은역측시결과.재0.75 mm층후섭골CT축위층면적이낭주위,수동설치7개흥취구,측량평균CT치.근거CT표현장이경화병례분위2개아조:A조,CT현시무병리변화;B조,이와구골밀도강저.비교각흥취구병례조여대조조평균CT치적차이,분석병례조CT표현여순음측은결과적관계.결과 란원창후연화란원창전연저량개흥취구,병례조평균CT치명현저우대조조(란원창후연t=-2.030,P=0.046;란원창전연Z=-4.979,P<0.01).A조30례,포괄전도성롱9례(30%),혼합성롱21례(70%);B조4례,포괄전도성롱1례(25%),혼합성롱3례(75%).결론 이경화환자란원창주위골질CT밀도가능발생개변.
Objective To investigate the value of high-resolution computed tomography (CT) densitometry in the diagnosis of otosclerosis. Methods CT scanning and pure tone test results of 34 patients (34 ears, the otosclerosis group) with surgically confirmed otosclerosis and 33 patients (33 opposite normal ears, the control group) with facial pa-ralysis diagnosed at the same period were analyzed retrospectively. Seven regions of interest (ROI) were set manually around the otic capsule on the axial slice of 0. 75-mm thick. The mean Hounsfieldunit (HU) values of the seven regions were measured. Based on the CT imaging, the ears with otosclerosis were classified into group A(no pathological CT find-ings) and group B (low density around the cochlea). In each ROI, the difference of mean HU values between the otos-cerosis group and the control group was compared. In the otosclerosis group, the relationship between the findings of CT and the results of the audiometry was analyzed. Results The mean HU values in the area posterior and anterior to the oval window were significantly lower in the otosclerosis group than in the control group (the former: t = - 2. 030, P =0. 046; the latter: Z = - 4. 979, P < 0.01). The patients (30 cases in group A and 4 cases in group B) showed a conduc-tive hearing loss[9 cases(30%) in group A and 1 case(25%) in group B] or a mixed heating loss[21 cases(70%) in group A and 3 cases(75%) in group B]. Conclusions The bone density around the oval window might change in pa-tients with otosclerosis. (Chin J Ophthalmol and Otorhinolaryngol,2009,9:218-220)
