数字减影CT血管成像和低场强MRI诊断蛛网膜下腔出血的价值及影像特点分析  

Value and Imaging Features of Digital Subtraction CT Angiography and Low Field Intensity MRI in the Diagnosis of Subarachnoid Hemorrhage

作　　者：曹福媛 陈燕浩[2] 余波[1] CAO Fu-yuan;CHEN Yan-hao;YU Bo(Department of Emergency, Wuhan Central Hospital Affiliated to Tongji Medical College,Huazhong University of Science and Technology,Wuhan 430014,Hubei Province,China)

机构地区：[1]华中科技大学同济医学院附属武汉中心医院急诊科 [2]华中科技大学同济医学院附属武汉中心医院影像科,湖北武汉430014

出　　处：《中国CT和MRI杂志》2019年第5期11-14,共4页Chinese Journal of CT and MRI

摘　　要：目的数字减影CT血管成像(DSCTA)和低场强MRI诊断蛛网膜下腔出血(SAH)的价值及影像特点分析。方法选择2014年1月到2018年1月到医院就诊SAH患者85例,所有患者均进行DSCTA、低场强MRI检查。以脑血管造影(DSA)为金标准,统计DSCTA及低场强MRI诊断效能,统计DSCTA及低场强MRI对不同病因SAH检出率,统计DSCTA及低场强MRI对不同部位动脉瘤检出率,统计DSCTA及低场强MRI对不同大小动脉瘤检出率。结果 DSCTA对SAH诊断准确率92.94%,特异度80.00%,灵敏度93.75%;低场强MRI对SAH诊断准确率90.59%,特异度80.00%,灵敏度91.25%;DSCTA在颅内动脉瘤检出率高于低场强MRI(P<0.05);DSCTA及低场强MRI两种检测方式在不同部位、大小动脉瘤检出率差异无统计学意义(P>0.05)。结论 DSCTA及低场强MRI均对SAH有较高诊断效能,其中DSCTA可提升血管对比度且可去除骨结构干扰,对动脉瘤检出率更高。Objective To analyze the value and imaging features of digital subtraction CT angiography(DSCTA)and low field intensity MRI in the diagnosis of subarachnoid hemorrhage(SAH).Methods 85 cases of patients with SAH in the hospital from January 2014 to January 2018 were selected.All patients were given DSCTA and low field intensity MRI.The cerebral angiography(DSA)was taken as the gold standard,and the diagnostic efficacy of DSCTA and low field intensity MRI was counted,and the detection rates of SAH with different causes were counted by DSCTA and low field intensity MRI,and the detection rates of different sites of aneurysms by DSCTA and low field intensity MRI were counted,and the detection rates of different sizes of aneurysms by DSCTA and low field intensity MRI were counted.Results The diagnostic accuracy,specificity and sensitivity of DSCTA for SAH were 92.94%,80.00%and 93.75%respectively.The diagnostic accuracy,specificity and sensitivity of low field intensity MRI for SAH were 90.59%,80.00%and 91.25%.The detection rate of intracranial aneurysm by DSCTA was higher than that of low field intensity MRI(P<0.05).There were no significant differences in the detection rates of aneurysms of different sites and sizes by DSCTA and low field intensity MRI(P>0.05).Conclusion Both DSCTA and low field intensity MRI have high diagnostic efficacy for SAH.DSCTA can improve blood vessel contrast and remove bone structure interference,and has high detection rate of aneurysms.

关 键 词：数字减影电子计算机断层扫描血管成像 低场强磁共振成像 蛛网膜下腔出血 

分 类 号：R743.35[医药卫生—神经病学与精神病学]