欢迎来到天天文库
浏览记录
ID:54376402
大小:540.11 KB
页数:3页
时间:2020-05-01
《先天性外中耳畸形的高分辨率CT表现.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、·影像与介入·20l3年6月第1O卷第l7期先天性外中耳畸形的高分辨率CT表现刘广保聂玉霞谭子琨海南省三亚市中医院介入医学影像科.海南三亚572000【摘要】目的探讨不同类型的先天性外中耳畸形的高分辨率CT(HRCT)的诊断价值。方法收集诊断为先天性外中耳畸形患者40例的影像学资料进行回顾性研究,所有患者均行HRCT扫描,骨算法成像。结果在本研究的40例先天性外中耳畸形患者中,单纯外耳畸形13例,其中副耳1例,副耳合并外耳道狭窄1例,外耳道狭窄3例,外耳道骨性闭锁5例,外耳道膜性闭锁3例,单纯中耳畸形8例,外耳并中耳
2、畸形17例,外耳、中耳及内耳混合畸形2例。结论外耳畸形及中耳畸形单侧发病常见,外耳、中耳畸形常同时发生。外耳畸形中先天性外耳道闭锁常见,中耳畸形以听骨链异常常见。HRCT对骨质结构显示清晰,能够观察外耳、中耳畸形。【关键词】先天性耳畸形;x线计算机;高分辨率cT;颞骨【中图分类号】R764.7【文献标识码】Bf文章编号】1673—7210(2013)06(b)一0104—03High-resolutioncomputerizedtomographyappearancesofcongenitalmalformation
3、softheexternalandmiddleearLIUGuangbaoNIEYuxiaTANZikunDepartmentofInvolvedinMedicalImaging,SanyaHospitalofTraditionalChineseMedicine,HmnanProvince,Sanya572000,China[Abstract]ObjectiveToevaluatethevalueofclinicalapplicationofhigh-resolutioncomputerizedtomography(
4、HRCT)inthediagnoseofcongenitalmalformationsoftheexternalandmiddleear.MethodsTheimagingdataof40congenitalmalformationsoftheexternalandmiddleearpatientswithHRCTwerecollectedandanalyzedretrospec.tively.AllthetemporalboneswerescannedwithHRCT.Allimagesweretargetedus
5、inghigh—bone—detailalgorithms.Results13casesofexternalearabnormalitieswerefound,including1caseofaccessoryauricle,1caseofaccessorywithstenosisofexternalacousticmeatus,3casesofstenosisofexternalacousticmeatus,5casesofexternaiauditorycanalbonyatresiaand3casesofext
6、ernalauditoercanalatresiafilm,8casesofmiddleearabnormalities,17casesofexternalandmiddleearmalformation,2casesofexternal,middleandinnerearmalformation.ConclusionExternalearmalformationandmiddleearmalformationareusuallyunilateral,whileenlargementofvestibularaqued
7、uctisbi-latera1.Congenitalatresiaofexternalacousticmeatusisthemostcommontypeintheexternalearmalformation.HRCTcanprovideclearimagesoftemporalboneandauditoryossicles,whichhelpUSdiagnosethemalformationsofexternalear,middleearandosseouslabyrinth.[Keywords]Congenita
8、learmalformation;X-raycomputer;HRCT;Temporalbone新生儿先天性外中耳畸形是导致先天性耳聋的重要kV,140~160mA,窗宽4000,窗位7000,骨算法重建,矩阵原因.先天性外中耳畸形常导致传导性耳聋,而外中耳畸512x512。形类型多而复杂,由于外耳、中耳大部为骨质结构,颞骨本2结果身具有天然骨
此文档下载收益归作者所有