摘要
目的：分析颈静脉孔区肿瘤的影像学特点，探讨ＭＲＡ对其诊断与鉴别诊断的价值。材料与方法：对５例经手术病理证实的颈静脉孔区肿瘤（颈静脉球瘤２例、神经鞘瘤２例、脑膜瘤１例）病人行ＭＲＩ和ＴＯＦ法ＭＲＡ检查，应用１．０Ｔ超导ＭＲ系统，在常规ＭＲＩ基础上采用２Ｄ或３ＤＦＩＳＰ序列和ＭＩＰ图像后处理技术获取ＭＲＡ图像。４例有ＣＴ，３例有ＤＳＡ资料。结果：ＭＲＩ显示了全部病灶和颈静脉孔的扩大与破坏，准确定性诊断了４例，结合ＭＲＡ后，５例均正确定性诊断。颈静脉球瘤的ＭＲＩ瘤内流空征和ＭＲＡ血管团块征颇具特征性。神经鞘瘤与脑膜瘤的ＭＲＩ信号有别，且前者易囊变，两者ＭＲＡ均未显示肿瘤血管。结论：ＭＲＩ，尤其结合ＭＲＡ对颈静脉孔区肿瘤诊断与鉴别诊断颇有价值。
Purpose:Toanalysetheimagingcharacteristicsoftumorsinjugularforamenarea,andtoevaluateMRAindiagnosisanddiferentialdiagnosisofthesetumors.Materialsandmethods:ConventionalMRIwithTOFMRAwasperformedin5pathologicalyprovedcaseswithtumorsinjugularforamenarea(2glomusjugulartumors,2neurilemomasand1meningioma)at1.0Tsuper-conductiveMRsystemusing3Dor2DFISPsequencesandMIPpostprocessingtechnique.CTwasal-soperformedin4casesandDSAin3cases.Results:MRIclearlydemonstratedsoft-tisuemass,en-largementofjugularforamenandbonedestructioninal5cases.Accuratediagnosiswasestablishedin4casesbyMRIandinal5casesbyMRI+MRA.Glomusjugulartumorcharacteristicalyap-pearedasmultiplepunctateandserpiginoussignalvoidareasintumormass(flow-void-in-tumorsign)onMRIandneovascularityonMRA.TheMRIsignalsofneurilemomawasalsodiferentfromthatofmeningioma,andtherewerenotumorvesselsonMRAinbothofthem.Conclusion:MRI,especialycombinedwithMRA,wasvaluableindiagnosisanddiferentialdiagnosisoftumorsinjugularforamenarea.
出处
《中华放射学杂志》
CAS
CSCD
北大核心
1996年第5期323-336,共14页
Chinese Journal of Radiology
