FLAIR,DWI联合SWI序列在蛛网膜下腔出血中的临床应用研究

发布时间：2018-07-20 16:15

【摘要】：目的:探讨液体衰减反转恢复(FLAIR)、弥散加权成像(DWI)联合磁敏感加权成像(SWI)序列在蛛网膜下腔出血(SAH)中的临床应用价值。方法:35例SAH患者,包括超急性或急性期19例,亚急性期10例,慢性期6例。均行CT、磁共振常规序列(T1WI,T2WI)及FLAIR,DWI和SWI序列检查,观察SAH的影像学表现,比较各检查方法对各时期SAH及其病因和并发症的显示情况。结果:SAH在FLAIR,DWI序列上显示为高信号,在SWI序列上呈低信号;MRI常规序列对各时期SAH检出率较低;CT在超急性或急性SAH和亚急性期SAH的检出率分别为73.7%和50.0%;而FLAIR,DWI联合SWI序列对各时期SAH检出率均为100%。结合MRI常规序列显示SAH合并脑挫裂伤或弥漫性轴索损伤(DAI)17例,脑缺血或梗死1例,在自发性SAH中显示动脉瘤和血管畸形各2例,差异具有统计学意义(P0.05)。结论:FLAIR,DWI联合SWI序列对诊断SAH敏感性及准确性最高,并能够较好地显示其病因和并发症,为临床诊治、分期、病情评估及预后提供科学依据。
[Abstract]:Objective: To investigate the clinical value of liquid attenuation inversion recovery (FLAIR), diffusion weighted imaging (DWI) combined with magnetic sensitive weighted imaging (SWI) sequence in subarachnoid hemorrhage (SAH). Methods: 35 cases of SAH patients, including 19 cases of hyperacute or acute phase, 10 subacute phase, 6 chronic phase, all T1WI, T2WI, FLAIR, DW, and DW. I and SWI sequences were used to observe the imaging manifestations of SAH and to compare the display of SAH and its causes and complications at all times. Results: SAH showed high signal on FLAIR, DWI sequence and low signal on SWI sequence; MRI conventional sequence was low in the detection rate of SAH in each period; CT in hyperacute or acute SAH and subacute phase detection. The rate of output was 73.7% and 50%, respectively, while FLAIR, DWI combined SWI sequence was 100%. combined with MRI routine sequence to show 17 cases of SAH combined with cerebral contusion or diffuse axonal injury (DAI), 1 cases of cerebral ischemia or infarction, and 2 cases of aneurysm and vascular malformation in spontaneous SAH (P0.05). Conclusion: FLAI The R and DWI combined SWI sequences have the highest sensitivity and accuracy for the diagnosis of SAH, and can show their causes and complications well, and provide a scientific basis for clinical diagnosis, staging, disease evaluation and prognosis.
【作者单位】：于都县人民医院;
【基金】：赣州市指导性科技计划项目(课题编号:GZ2015ZSF418)
【分类号】：R743.35

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