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目的探讨3.0T磁共振磁敏感加权成像(SWI)结合常规序列在脑出血病变中的应用价值。方法选择2015年10月至2016年7月收治的脑出血患者31例。所有患者均采用SWI及常规横向弛豫加权成像(T2WI)、纵向弛豫加权成像(T1WI)、液体衰减反转恢复(FLAIR)序列进行头颅扫描,采用Philips MR Systems Ingenia 3.0T全数字超导型磁共振。分析SWI序列和磁共振常规序列对病变的显示效果。结果脑出血诊断阳性率:SWI 100%(31/31)、T2WI 48%(15/31)、T1WI 58%(18/31)、FLAIR 52%(16/31)。其中3例脑内微出血的阳性诊断SWI 3例,其余序列T2WI、T1WI、FLAIR都未见明显显示。10例海绵状血管瘤阳性诊断:SWI 10例、T2WI 8例,T1WI 2例。静脉畸形阳性诊断:SWI 2例,其余序列T2WI、T1WI、FLAIR均未显示。3例出血性脑梗死阳性诊断:SWI 3例、T1WI 1例。结论 SWI对脑出血的敏感性明显高于MR常规序列,是检查脑内微出血灶的一种有效方法,结合MR常规序列可以提高诊断准确率。
Objective To investigate the value of 3.0T magnetic resonance magnetic resonance weighted imaging (SWI) combined with routine sequence in the treatment of cerebral hemorrhage. Methods 31 patients with ICH admitted from October 2015 to July 2016 were enrolled. All patients were scanned by SWI and conventional transverse relaxation-weighted imaging (T2WI), longitudinal relaxation-weighted imaging (T1WI) and fluid attenuated inversion recovery (FLAIR) sequence. The images were acquired by Philips MR Systems Ingenia 3.0T all-digital superconducting Magnetic resonance. Analysis of the SWI sequence and conventional MRI sequences showed lesions. Results The positive rates of ICH were 100% (31/31) in SWI, 48% (15/31) in T2WI, 58% (18/31) in T1WI and 52% (16/31) in FLAIR. Three cases of intracerebral hemorrhage positive diagnosis of SWI in 3 cases, the remaining sequences T2WI, T1WI, FLAIR have not been clearly demonstrated. 10 cases of cavernous hemangiomas positive diagnosis: SWI 10 cases, T2WI 8 cases, T1WI 2 cases. Vein malformations positive diagnosis: 2 cases of SWI, the remaining sequences T2WI, T1WI, FLAIR were not shown. 3 cases of hemorrhagic cerebral infarction positive diagnosis: 3 cases of SWI, T1WI 1 case. Conclusion The sensitivity of SWI to cerebral hemorrhage is significantly higher than that of routine MR. It is an effective method to detect micro-hemorrhage in the brain. Combined with routine MR sequence, the diagnostic accuracy of SWI can be improved.