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编号:13001655
磁敏感加权成像检测脑微出血灶在腔隙性脑梗塞中的应用(1)
http://www.100md.com 2017年3月5日 《医学信息》 2017年第9期
     摘要:目的 探讨磁敏感加权成像(SWI)技术在检测腔隙性脑梗塞患者脑微出血病变的价值。方法 回顾性分析腔隙性脑梗塞患者68例,同时分析同期68例健康志愿者作为对照组,共136例。2组均行MRI颅脑常规序列、DWI及SWI检查,分析其相关性。结果 所有检查者中,SWI发现有脑微出血(CMBs)37例,腔隙性脑梗塞30例,对照组7例;DWI发现有CMBs 23例,对照组4例,SWI序列显示CMBs阳性率及数目与DWI及T2WI序列差异均有统计学意义(P<0.05)。腔隙性脑梗塞严重程度与CMBs数目呈正相关。结论 SWI显示CMBs优于DWI及T2WI,且腔隙性脑梗塞严重程度与CMBs数目呈正相关。

    关键词:磁敏感加权成像;腔隙性脑梗塞;脑微出血灶

    Application of Susceptibility Weighted Imaging in the Detection of Focal Cerebral Hemorrhage in Lacunar Infarction
, 百拇医药
    ZHOU Rong-chao1,SONG Zhi-yi1,LIU Xi-fu1,WANG Chao1,ZHOU Gang1,NI Ai-juan2,LIU Ying1

    (1.Department of Radiology,the Affiliated Hospital of Tianjin Academy of traditional Chinese medicine,Tianjin 300120,China;

    2.Institute of Health Equipment,Tianjin Academy of Military Medical Sciences,Tianjin 300161,China)

    Abstract:Objective To investigate the susceptibility weighted imaging(SWI)technique in detecting cerebral lacunar infarction in patients with cerebral microbleeds lesion.Methods Retrospective analysis of 68 cases of patients with lacunar cerebral infarction,and analysis of the same period 68 cases of healthy volunteers as control group,136 cases in group.2 underwent conventional brain MRI sequence,DWI and SWI examinations.The correlation was analyzed.Results All the examination,SWI found that cerebral microbleeds(CMBs)in 37 cases,30 cases of lacunar cerebral infarction,7 cases of the control group;DWI CMBs is found in 23 cases,4 cases in the control group,the positive rate of CMBs and DWI and the number of T2WI sequence and SWI sequence showed that there were statistically significant differences(P<0.05).The positive number of lacunar cerebral infarction and the severity of CMBs.Conclusion The SWI show that CMBs is superior to DWI and T2WI,and a positive number of lacunar cerebral infarction and the severity of CMBs.
, 百拇医药
    Key words:Magnetic susceptibility weighted imaging;Lacunar infarction;Brain microbleeds

    腦微出血灶(CMBs)是终末期微小血管病变导致的含铁血黄素在脑内的局部沉积[1],与症状性脑出血,缺血性卒中,脑白质病变,腔隙性脑梗塞密切相关。本文旨在探讨SWI在检测腔隙性脑梗塞患者中CMBs的应用价值。

    1资料与方法

    1.1一般资料 回顾性分析2015年10月~2016年9月在我院经临床及影像诊断为腔隙性脑梗塞患者,男性41例,女性27例,平均年龄(67.3±6.4)岁,临床表现为多样,包括头痛、头晕、恶心、视物旋转、吞咽困难、共济失调等。正常对照组68例,男性38例,女性30例,平均年龄(58.4±7.1)岁。

    1.2研究方法 采用Siemens1.5T超导型磁共振扫描仪,8通道高分辨力颅脑线圈。所有研究对象均行T2 WI 、T2FLAIR 、DWI 和 SWI。扫描参数:SWI采用三维扰相梯度回波序列,TR 49.0 ms,TE 40.0 ms,层厚2.0 mm,层距1.0 mm,距阵320×256,NEX 1。SWI采集时获得完整的病灶影像。DWI应用SE-EPI序列b= 1000 s/mm2,扫描参数:TR=360 ms,TE=102 ms,扫描层数40层,层厚5 mm,层距1.5 mm,FOV 23 cm×23 cm,矩阵160×160,NEX2.6,扩散方向3。, http://www.100md.com(周荣超 宋志仪 刘锡甫 王超 周刚 倪爱娟 刘莹)
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