MSCT和MRI在脑血管疾病中的诊断价值比较

Comparison of the diagnostic value of MSCT and MRI in cerebrovascular diseases

目的 探讨多层螺旋CT(MSCT)以及磁共振成像(MRI)在脑血管疾病诊断的临床价值。方法 选取117例疑似患脑血管疾病的患者,以脑血管造影结果为金标准,比较MRI与MSCT检测的检出率及诊断效能。结果 117例疑似脑血管疾病经脑血管造影诊断阳性病例97例,主要有脑梗死、脑出血、蛛网膜下腔出血及动脉瘤。MSCT检查阳性病例77例,诊断阳性率66%;MRI检查阳性病例85例,诊断阳性率72%。两者诊断阳性率差别不显著(P>0.05)。MRI在诊断急性脑梗死检出率较MSCT诊断检出率高(P<0.05),MSCT在诊断蛛网膜下腔出血检出率较MRI诊断检出率高(P<0.05)。MRI诊断急性脑梗死灵敏度(83%)较MSCT灵敏度(58%)更高(P<0.05),而MRI诊断急性脑梗死特异度、准确度与MSCT无明显差异(P>0.05)。结论 临床对脑血管疾病诊断中,MRI在超急期、急性脑梗死诊断明确率较MSCT提升,但MSCT在出血性疾病诊断中简单快捷,应依据具体情况选择相应诊断方式。

Objective To explore the clinical value of multi-slice spiral CT(MSCT) and magnetic resonance imaging(MRI) in the diagnosis of cerebrovascular diseases.Methods One hundred and seventeen patients with suspected cerebrovascular diseases were selected.The detection rate and diagnostic efficacy of MRI and MSCT were compared with the results of cerebral angiography as the gold standard.Results Ninety-seven cases of suspected cerebrovascular diseases were diagnosed by cerebral angiography,mainly including cerebral infarction,cerebral hemorrhage,subarachnoid hemorrhage and aneurysm.The positive rate of MSCT was 66%;The positive rate of MRI was 72%.There was no significant difference in the positive rate between the two groups(P>0.05).The detection rate of MRI in diagnosing acute cerebral infarction was higher than that of MSCT(P0.05).Conclusion In the clinical diagnosis of cerebrovascular diseases,the diagnostic accuracy of MRI in super acute stage and acute cerebral infarction is higher than that of MSCT.However,MSCT is simple and rapid in the diagnosis of hemorrhagic diseases,and the corresponding diagnostic methods should be selected according to the specific conditions.