CAJ | 학술논문

目的探讨螺旋CT(SCT)和MRI对主动脉瘤的诊断价值。方法 25例主动脉瘤，13例行MRI检查，12例行SCT及三维重建技术检查。三维重建方法采用表面阴影显示法(SSD)、最大密度投影(MaxIP)及多层面重建法(MPVR)。结果 13例主动脉夹层MRI和SCT均较好显示主动脉夹层内膜片和真假腔，SCT显示内膜破口5例，MRI无一例显示；SCT及三维重建较好地显示了主动脉夹层的内膜撕裂的范围、真性主动脉瘤(TAA)瘤壁的厚度及钙化、附壁血栓的情况及与邻近大血管分支的关系。结论 SCT及三维重建技术的联合应用较低场MRI更能明确主动脉瘤的病变，对帮助和指导手术更具有价值。
목적 탐토라선CT(SCT)화MRI대주동맥류적진단개치。방법 25례주동맥류，13례행MRI검사，12례행SCT급삼유중건기술검사。삼유중건방법채용표면음영현시법(SSD)、최대밀도투영(MaxIP)급다층면중건법(MPVR)。결과 13례주동맥협층MRI화SCT균교호현시주동맥협층내막편화진가강，SCT현시내막파구5례，MRI무일례현시；SCT급삼유중건교호지현시료주동맥협층적내막시렬적범위、진성주동맥류(TAA)류벽적후도급개화、부벽혈전적정황급여린근대혈관분지적관계。결론 SCT급삼유중건기술적연합응용교저장MRI경능명학주동맥류적병변，대방조화지도수술경구유개치。
To evaluate the diagnostic value of spiral CT( SCT) and MRI in the assessment of aortic aneurysm. MethodsSCT or MRI were performed on 25 patients of whom 13 was investigated by MRI and 12 by SCT with SSD, MaxIP and MPV-R images. Re-sults MRI and SCT could demonstrate the intimal flap,the ture lumen and the false one in 13 AD patients.Site of rupture of aortra wasclearly showed by SCT in five patients but none by MRRI. SCT better showed the extent of aorta rupture, intraluminal thrombus, the thick-ness and calcification of the aneurysm wall, and the relatonship between aneurysm and arterial branches in aortic aneurysm. Cooculusions SCT combined with 3- dimensional reconstructed images are more useful than low magnetic field MRI in the assessment of aortic a-neurysm and can provide more informaton for the surgeons.