FLAIR与SWI大脑中动脉血管征对急性缺血性脑卒中诊断价值研究

发布时间：2018-01-01 06:12

本文关键词：FLAIR与SWI大脑中动脉血管征对急性缺血性脑卒中诊断价值研究　出处：《中国临床医学影像杂志》2017年09期 　论文类型：期刊论文

【摘要】：目的:探讨3.0T磁共振的液体衰减反转恢复成像序列(FLAIR)的高信号血管征(HVS)与磁敏感加权成像(SWI)对急性缺血性脑卒中(AIS)临床对比研究应用价值。方法:62例AIS(72 h)均行常规MRI、MRA及SWI检查患者,利用FLAIR与SWI联合应用对AIS的近端HVS与血管磁敏感征(SVS)和远端HVS与病灶周围软脑膜血管的侧支循环血管扩张程度相关性分析。结果:在62例AIS中大脑中动脉(MCA)近端高信号HVS阳性39例,阴性23例,分别占总数62.9%、37.1%;远端HVS阳性51例、阴性11例,分别占总数82.2%、17.8%;SVS阳性53例、阴性9例,分别占总数85.5%、14.5%;病灶周围软脑膜血管与同镜像区扩张49例,无扩张13例,分别占总数79.0%、20.1%;AIS的近端HVS征与SWI的SVS征责任血管相关性分析,对t检验具有统计学意义(χ~2=8.255,P=0.004,0.01)。MCA远端在T2 FLAIR的HVS征与病灶周围有、无软脑膜血管显示程度相关性分析对t检验具有一致性(χ~2=0.207,P=0.6490.05)。结论:MCA的SVS和近端HVS对AIS的责任血管具有明显一致性,且SWI对MCA的血栓检出率明显优于T2 FLAIR,MCA远端的HVS征与病灶周围有、无软脑膜血管具有一致性,同时对危重患者优化检查流程,为临床制定正确的治疗方案和预后判断具有重要临床意义。
[Abstract]:Objective: to investigate the effects of high signal vascular sign HVS (HVS) and magnetic sensitivity weighted imaging (SWI) on acute ischemic stroke in 3.0T magnetic resonance with fluid attenuated inversion recovery sequence (FLAIRI). Methods 62 cases of AIS(72 were treated with routine MRI. Patients were examined by MRA and SWI. Application of FLAIR and SWI to the proximal HVS of AIS and Vascular Magnetic sensitivity sign. Results: among 62 cases of AIS, 39 cases were positive for high signal HVS in proximal end of middle cerebral artery (MCA). 23 cases were negative, accounting for 62.9% of the total. The distal HVS was positive in 51 cases and negative in 11 cases, accounting for 82.2% and 17.8% respectively. SVS was positive in 53 cases and negative in 9 cases, accounting for 85. 5% and 14. 5% respectively. The peripheral pial meningeal vessels and the same mirrored area were dilated in 49 cases, 13 cases were not dilated, accounting for 79.0% of the total. The correlation between the proximal HVS sign of AIS and the SVS sign of SWI was statistically significant to t test (蠂 ~ 2 / 2 = 8.255 P ~ (0.004)). There was no correlation between the degree of pial meningeal vessel display and the HVS sign of the distal end of MCA on T2 FLAIR (蠂 ~ 2 / 0. 207), and there was no correlation between the degree of pial meningeal vessel display and T test (蠂 ~ 2 / 2). Conclusion the SVS of SVS and HVS of the proximal end of MCA are consistent with the responsible blood vessels of AIS. The detection rate of thrombus in MCA by SWI was better than that of HVS sign in distal end of T2FLAIRN and around the lesion, and there was no consistency of pial meningeal vessels. Meanwhile, the examination procedure of critical patients was optimized. It is of great clinical significance to make correct treatment plan and prognostic judgement for clinic.
【作者单位】：江苏省连云港市中医院南京中医药大学附属连云港医院;
【分类号】：R445.2;R743.3
【正文快照】： 脑血管病在全球居死亡第2位,在中国今年已跃升为首位死因,且是导致成年人长期残疾的主要原因,其高发病率、高致残率、高死亡率和复发率,在美国首发卒中有87%为缺血性卒中[1]。以大脑中动脉(MCA)供血区发病率最高,约占脑梗死50%~60%[2-3]。急性脑梗死的影像学诊断主要依靠MRI,

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