【推荐】正常人内耳MR成像观察及解剖测量.doc

【推荐】正常人内耳MR成像观察及解剖测量

正常人内耳MR成像观察及解剖测量第4l卷第1期

2005年3月

青岛大学医学院

ACTAACADEMIAEMEDICINAEQINGDAOUNIVERSITATIS

VoI.4l.No.1

March2005

正常人内耳MR成像观察及解剖测量

于海玲,张秋贵,于爱华

(青岛大学医学院附属医院耳鼻咽喉科,山东青岛266003)[摘要]?目的利用MR对正常人内耳进行形态学观察和测量,并与颞骨标本测量结果进行比较,旨在探

讨内耳的MR表现及其正常形态大小,为该部位病变的定位诊断以及内耳显微外科手术提供有价值的解剖学依

据.?方法选择33例无任何耳部疾患的正常志愿者(男24例,女9例),对两侧内耳进行MR三维重建成像,并

对3个半规管进行测量;同时制作26侧成人颞骨骨迷路标本进行观察和测量,将两者结果进行比较.?结果33

例MR三维重建成像均能满意显示两侧内耳的解剖结构.前庭,耳蜗,半规管,内听道显示清晰,可对其形态进行

外周长,以后半规管最长,上半规管次之,仔细观察.MR成像测得3个半规管内周长,

外半规管最短,其规律与尸

头测量结果一致.?结论利用MR成像技术能立体而直观地显示内耳的结构,其测量结果与尸头测量结果有一

定差值,但规律一致,可为I临床提供正常人内耳成像特点及解剖学参考.[关键词]迷路;磁共振成像;解剖学,局部

[中图分类号]R322.923[文献标识码]A[文章编号]1672—4488(2005)01—0031—03

MAGNETICRESONANCEIMAGINGOFNORMALINNEREARANDANATOMIC

MEASUREMENTYUHal—ling,ZHANG

Qi一gui,YUAi—

hua(Departmentof0toIhinolaryngology,TheAffiliatedHospitalofQingdaoUniversityMedicalCollege,

Qingdao266003,China)

EABSTRACT~ObjectiveTocomparethemagneticresonanceimaging(MRI)findingsoftheinnerearandthedataofana—

tomicalmeasurementfromtemporalboneforthepurposeofinvestigationofthemanifestationofinnerearonMRIandtoprovidea

valuableanatomicalbasisforthediagnosisofthediseaseslocatedinthatareaandmicrosugery.MethodsMR1scansofinnerears

werestudiedin33normalvolunteerswithnoanyspecificabnormalitiesorsymptomsand26honylabyrinthssamplesweremade

fromtemporalbonesandmea—

sured.ResultsAnatomicalstructuresoftheinnerearwerewelldemonstratedinallthe33cases.

WithTzweightedFast—

ASEsequence,allthreesemicircularcanals,utricle,saccule,cochleaandIACproducedhighsignalintensi—

ty.Ofthethreesemicircularcanals,theinternalandexternalperimetersandtheacreagesontheselectedplaneoftheposteriorsam—

icircularcanal(P.S.c)werethelargestandthoseofthelateralemicircularcanal(LS.c)werethesmallest.Thesameresultswere

obtainedfromthebonylabyrinth.ConclusionMR1withFast—

ASEsequencemightshow,stereoscopicaIlyanddirectly,themi—

nutestructuresofinnerear.Themeasurementresults,though,haveadefinitedifferencecomparedwiththeresultsfromcadaveric

head,thepatterniscoinc