[1]勒都晓兰,吕发金,陈莉,等.ESWAN序列对脑梗死脑内微出血的诊断价值[J].第三军医大学学报,2012,34(19):1998-2001.
 Ledu Xiaolan,Lu Fajin,Chen Li,et al.Value of enhanced gradient echo T2*-weighted angiography sequence for diagnosis of cerebral infarction accompanying cerebral microbleeds[J].J Third Mil Med Univ,2012,34(19):1998-2001.
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ESWAN序列对脑梗死脑内微出血的诊断价值(/HTML )
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《第三军医大学学报》[ISSN:1000-5404/CN:51-1095/R]

卷:
34卷
期数:
2012年第19期
页码:
1998-2001
栏目:
论著
出版日期:
2012-10-15

文章信息/Info

Title:
Value of enhanced gradient echo T2*-weighted angiography sequence for diagnosis of cerebral infarction accompanying cerebral microbleeds
作者:
勒都晓兰吕发金陈莉姚开情李剑秋
重庆医科大学附属第一医院放射科
Author(s):
Ledu Xiaolan Lu Fajin Chen Li Yao Kaiqing Li Jianqiu
Department of Radiology, First Affiliated Hospital, Chongqing Medical University, Chongqing, 400016, China
关键词:
脑微出血增强梯度回波T2*加权血管成像磁共振成像
Keywords:
cerebral microbleeds enhanced gradient echo T2* weighted angiography magnetic resonance imaging
分类号:
R744.33; R743.34; R445
文献标志码:
A
摘要:
目的      探讨增强梯度回波T2*加权血管成像(enhanced gradient echo T2*-weighted angiography, ESWAN)序列在诊断脑梗死伴发脑微出血(cerebral microbleeds,CMBs)中不同影像学表现的价值。      方法       收集2011年3-10月于我院检查诊断脑梗死的55例患者的影像学资料,记录ESWAN图像上CMBs发生部位、数目、表现。      结果       55例患者中,ESWAN 共检出CMBs患者占52.73%(29/55),高于MRI常规序列检出率(29.09%,16/55)(χ2=6.36,P<0.05),同时行头颅CT平扫的34例患者中,8.82%(3/34)发现梗死灶内少量出血(χ2=29.79,P<0.01)。ESWAN图像上,51.72%(15/29)的患者CMBs的表现为小圆形信号缺失,仅位于梗死灶外,37.93%(11/29)表现为小片状、条状信号缺失,仅位于梗死灶内,10.34%(3/29)梗死灶内外均有CMBs。此29例患者中,37.93%(11/29)为腔隙性脑梗死,其中81.82%(9/11)表现为梗死灶外CMBs;48.28%(14/29)为大面积梗死,其中71.43%(10/14)表现为梗死灶内CMBs。脑梗死不同分期间CMBs的发生差异有统计学意义(P<0.05)。脑梗死存在脑软化灶时更易发生CMBs(P<0.05)。      结论       CMBs的出现与血管的损伤程度有关,ESWAN对脑梗死伴CMBs的诊断有重要价值。
Abstract:
Objective        To study the value of enhanced gradient echo T2*-weighted angiography (ESWAN) sequence in the diagnosis of cerebral infarction accompanying cerebral microbleeds.       Methods       Imaging data were collected from 55 patients admitted to our hospital from March to October in 2011 and diagnosed with cerebral infarction. The site, number, and manifestations of cerebral microbleeds on ESWAN were recorded.       Results        The proportion of detected cerebral microbleeds was 52.73% (29/55), 29.09% (16/55), and 8.82% (3/34) respectively on ESWAN, conventional MR sequences (Chi square=6.36, P<0.05), and CT scanning (Chi square=29.79, P<0.01). In the ESWAN images, there were 51.72% patients (15/29) manifesting as absence of small round signals only outside of the infarct, 37.93% (11/29) as absence of small sheet and strip signals only in the infarct, and the left 10.34% (3/29) as above-mentioned signals in and outside of the infarct. Of the 29 patients with cerebral microbleeds detected in and outside the infarct, 37.93% (11/29) were diagnosed as lacunar infarction with 81.82% (9/11) of them diagnosed as cerebral microbleeds outside the infarct, 48.28% (14/29) were diagnosed as massive cerebral infarction with 71.43% (10/14) of them diagnosed as cerebral microbleeds inside the infarct. The incidence of cerebral microbleeds was significantly different in different stages of cerebral infarction (P<0.05). Cerebral microbleeds were more common when encephalomalacia foci were found following cerebral infarction (P<0.05).       Conclusion        The occurrence of cerebral microbleeds is closely related with the severity of vascular injury and ESWAN is of great value for the diagnosis of cerebral infarction accompanying cerebral microbleeds.

参考文献/References:

勒都晓兰, 吕发金, 陈莉, 等. ESWAN序列对脑梗死脑内微出血的诊断价值[J]. 第三军医大学学报,2012,34(19):1998-2001.

更新日期/Last Update: 2012-09-27