1.5T磁共振DWI和SWI序列检查在脑梗死与急性脑出血诊断中的临床价值  

Clinical value of 1.5T MRI DWI and SWI sequence in the diagnosis of cerebral infarction and cerebral hemorrhage

作　　者：黄瑞瑜[1] 喻霞[1] 许保刚[1] 马杏芝 王健[1] 

机构地区：[1]陕西中医药大学第二附属医院,陕西咸阳712000

出　　处：《实用临床医药杂志》2017年第13期92-94,共3页Journal of Clinical Medicine in Practice

基　　金：陕西省咸阳市科技局科研计划项目(XK06015-5)

摘　　要：目的分析1.5T磁共振扩散加权成像(DWI)和磁敏感加权成像(SWI)序列检查在脑梗死与脑出血诊断中的临床价值。方法选择28例脑梗死患者为对照组;选取28例急性脑出血患者为观察组。采用飞利浦1.5T磁共振成像系统,患者先进行轴位T_1WI、T_2WI常规序列扫描进行颅脑部检查,然后取DWI和SWI序列图像。比较2组患者病灶周边和中心SWI和DWI的不同特征,并测量病灶周边及中心区,进行PV和ADC值的测量。结果急性脑出血和脑梗死患者的T_1WI和T_2WI信号无明显区分,但DWI序列和DWI序列有明显差异。MRI常规检查,2组T_1WI序列、T_2WI序列的检出率无显著差异(P>0.05),但观察组DWI序列检出率低于对照组,SWI序列检出率显著高于对照组(P<0.05)。观察组的中心区ADC显著优于对照组,血肿区PV值显著低于对照组的血性转化区(P<0.05)。结论采用磁共振分别采集脑梗死和脑出血患者的DWI和SWI序列图像,两种患者的图像特点有明显区别。Objective To analyze the clinical value of 1. 5T MRI DWI and SWI sequence in the diagnosis of cerebral infarction and cerebral hemorrhage. Methods A total of 28 patients with cerebral infarction were selected as control group,and 28 patients with cerebral hemorrhage were selected as observation group. The PHILPS 1. 5T magnetic resonance imaging system was applied. The patients were examined by T1WI and T2WI sequence scanning,and DWI and SWI sequence images were obtained. In the two groups,lesions around the center and different characteristics of SWI and DWI were observed and compared,and the measurement of peripheral lesions were measured for calculating the central area of the PV and ADC. Results There was no significant difference between T1WI and T2WI in patients with cerebral hemorrhage and cerebral infarction,but there was significant difference between DWI sequence and DWI sequence. MRI routine examination showed that there were no significant differences in detection rates of T1WI sequence and T2WI sequence between two groups,but the detection rate of DWI sequence in the observation group was significantly lower than the control group,while detection rate of DWI sequence was significantly higher than the control group（ P〈0. 05）. The central area of ADC in the observation group was significantly better than that in the control group,and the PV value of the hematoma area was significantly lower than that of the control group（ P〈0. 05）. Conclusion Collections of DWI and SWI images of cerebral infarction and cerebral hemorrhage by magnetic resonance prove that there are significant differences between characteristics of two images.

关 键 词：1.5T磁共振 脑梗死 脑出血 DWI和SWI序列 

分 类 号：R743[医药卫生—神经病学与精神病学]