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目的:探讨磁敏感加权成像(SWI)在急性缺血性脑梗死诊疗中的临床价值。方法:对36例急性脑梗死患者进行CT、常规MRI、MRA、DWI及SWI的检查,对影像学进行对比研究。结果:36例脑梗死病灶在DWI图像上均显示高信号;MRA上31例可见大脑前、中、后动脉有不同程度狭窄、闭塞或分支血管减少,1例显示颈内动脉有闭塞;SWI上24例发现梗死区静脉血管减少,7例静脉血管缺失,13例SWI上发现不同程度的脑出血,而CT及常规MRI仅4例显示明确脑出血。结论:SWI对显示脑梗死合并脑微出血有特异性表现,且有评价梗死区脑组织存活性的潜在价值;SWI在急性脑梗死的诊断和临床治疗中起着重要作用,可列为急性脑梗死的检查常规。
Objective: To investigate the clinical value of magnetic resonance weighted imaging (SWI) in the diagnosis and treatment of acute ischemic cerebral infarction. Methods: Thirty - six patients with acute cerebral infarction were examined by CT, routine MRI, MRA, DWI and SWI. The imaging study was compared. Results: Thirty-six cases of cerebral infarction showed high signal intensity on DWI images. In MRA, there were 31 cases of cerebral infarction with varying degrees of stenosis, occlusion or branch vessel loss in one case and occlusion of internal carotid artery in 31 cases. On SWI Venous blood vessels were decreased in 24 cases, venous blood vessels were absent in 7 cases, and cerebral hemorrhage was found in 13 cases on SWI. Only 4 cases of CT and conventional MRI showed clear cerebral hemorrhage. CONCLUSIONS: SWI is specific for showing cerebral infarction with cerebral micro-hemorrhage and has potential value for assessing the survival of brain tissue in infarcted area. SWI plays an important role in the diagnosis and clinical treatment of acute cerebral infarction and can be classified as acute brain Check the infarction routine.