CAJ | 학술논문

目的：对比搏动性耳鸣的高分辨率 CT(HRCT)与 MRI CE 三维扰相梯度回波序列(three-dimensional spoiled gradient echo sequences,3D-SPGR)的影像学表现,评价其在诊断搏动性耳鸣(PT)中的应用价值。方法在已确诊的 PT 患者中选择同时行颞骨 HRCT 及 MRI CE 3D-SPGR 的15例,回顾性分析该15例 PT 患者的影像学资料,将 CT 与 MRI 检查结果对照分析,并总结2种检查方法对 PT 病因的显示。结果在15例患者中,8例9侧乙状窦异常,包括乙状窦憩室4侧,乙状窦裸露5侧；8侧伴有优势乙状窦；8例患者显示10侧颈静脉球高位；4例显示5侧粗大乳突导静脉；1例双侧半规管裂；1例鼓室球瘤；1例小血管压迫蜗神经。结论MRI CE 3D-SPGR 检查能准确地显示颅底部动、静脉血管的异常,骨结构的破坏及骨质的缺损需颞骨 HRCT 确诊,而 HRCT 在显示粗大的乳突导静脉以及小血管压迫蜗神经上逊色于 MRI CE 3D-SPGR。
목적：대비박동성이명적고분변솔 CT(HRCT)여 MRI CE 삼유우상제도회파서렬(three-dimensional spoiled gradient echo sequences,3D-SPGR)적영상학표현,평개기재진단박동성이명(PT)중적응용개치。방법재이학진적 PT 환자중선택동시행섭골 HRCT 급 MRI CE 3D-SPGR 적15례,회고성분석해15례 PT 환자적영상학자료,장 CT 여 MRI 검사결과대조분석,병총결2충검사방법대 PT 병인적현시。결과재15례환자중,8례9측을상두이상,포괄을상두게실4측,을상두라로5측；8측반유우세을상두；8례환자현시10측경정맥구고위；4례현시5측조대유돌도정맥；1례쌍측반규관렬；1례고실구류；1례소혈관압박와신경。결론MRI CE 3D-SPGR 검사능준학지현시로저부동、정맥혈관적이상,골결구적파배급골질적결손수섭골 HRCT 학진,이 HRCT 재현시조대적유돌도정맥이급소혈관압박와신경상손색우 MRI CE 3D-SPGR。
Objective To investigate the changes of pulsatile tinnitus on HRCT and MRI CE 3D-SPGR image.Methods CT and MRI images of 1 5 pulsatile tinnitus patients were retrospective analysis.All 1 5 patients underwent temporal bone HRCT and MRI CE 3D-SPGR scan.Abnormal changes on CT and MRI image,which caused the pulsatile tinnitus,were compared.Results In 1 5 patients,9 sides (8 cases)showed abnormal sigmoid sinuses including 4 sides of sigmoid sinuses diverticulum,5 sides sigmoid sinu-ses uncovering,8 sides dominant sigmoid sinuses.The high jugular bulb was showed in 10 sides (8 cases),the thick emissaria mas-toidea in 5 sides (4 cases),bilateral semicircular canal dehiscence in one case,glomus tympanicum tumor in one case and the cochle-ar nerve was constricted by small vessel in one case.Conclusion Cranial base vessel abnormity can be visualized more precisely on MRI CE 3D-SPGR image than that on HRCT.On the contrary,the detection of temporal bone abnormalities is superior on HRCT.