CAJ | 학술논문

目的探讨3.0T MR成像对颈动脉斑块检出及定性的能力. 方法 32例经超声筛选的颈动脉斑块病人, 运用3.0T 磁共振仪行多序列(3D-TOF、FLASH-3D、TSE-DIR T_1WI、TSE- DIR PDWI-FS、DIR TSE-T_2WI-FS、TSE-T_2WI)扫描,对颈动脉斑块行高分辨MRI成像, 参照AHA修改的MRI动脉粥样硬化分型标准, 分析斑块的信号特征. 结果 32例共发现49个粥样斑块,其中30个斑块在所有序列上信号单一均匀;15个斑块在1个或多个序列上信号混杂, 其中7个斑块含有脂质核心信号;3个斑块含钙化信号;2个表现为血管腔内血栓形成,管腔闭塞.28个斑块可见厚纤维帽信号;13个表现为薄纤维帽信号特征;5个斑块表面不光滑.结论在3.0T MR仪上运用多序列高分辨成像可以检出颈动脉粥样硬化斑块, 并在一定程度上可对其进行定性分析和定型.
목적 탐토3.0T MR성상대경동맥반괴검출급정성적능력. 방법 32례경초성사선적경동맥반괴병인, 운용3.0T 자공진의행다서렬(3D-TOF、FLASH-3D、TSE-DIR T_1WI、TSE- DIR PDWI-FS、DIR TSE-T_2WI-FS、TSE-T_2WI)소묘,대경동맥반괴행고분변MRI성상, 삼조AHA수개적MRI동맥죽양경화분형표준, 분석반괴적신호특정. 결과 32례공발현49개죽양반괴,기중30개반괴재소유서렬상신호단일균균;15개반괴재1개혹다개서렬상신호혼잡, 기중7개반괴함유지질핵심신호;3개반괴함개화신호;2개표현위혈관강내혈전형성,관강폐새.28개반괴가견후섬유모신호;13개표현위박섬유모신호특정;5개반괴표면불광활.결론 재3.0T MR의상운용다서렬고분변성상가이검출경동맥죽양경화반괴, 병재일정정도상가대기진행정성분석화정형.
Objective To study the capability in detection and qualitative analysis of carotid atherosclerotic plaque with 3.0T MR scanner.Methods Bilateral carotid arteriae in thirty-two patients with arterosclerosis which detected by Doppler ultrasound were examined with a 3.0T MR scanner.The pulse sequences included 3D time of flight,FLASH-3D,TSE-DIR T_1WI,TSE-DIR PDWI-FS,DIR TSE-T_2WI-FS and TSE-T_2WI.According to AHA modified criteria of atherosclerosis typing,the signal characteristics of plaques were analysed.Results Carotid plaques were homogeneous signal intensity on all sequences in 30/49,heterogeneous signal intensity on at least one sequence in 15/49,among them,7 with lipid core,3/49 plaques contained calcification ,2/49 appeared as thrombosis and resulting in vessel occulusion,28/49 plaques presented the character of thick fibrous cap,13/49 plaques showed character of thin fibrous cap,the surfaces of 5/49 plaques were rough.Conclusion High resolution multiple sequences imaging with 3.0T MR scanner can be used for detection and qualitative analysis of the carotid atherosclerotic plaque in a certain degree.