MRA与多螺旋CT对缺血性脑卒中患者不同颈动脉狭窄程度的诊断效能分析

Analysis of diagnostic efficacy of MRA and multi-slice CT in different degrees of carotid artery stenosis in patients with ischemic stroke

目的 探析多螺旋CT和MRA(磁共振血管成像)对缺血性脑卒中患者的诊断效果.方法 选取长沙市第一医院接诊的88例缺血性脑卒中患者为研究对象,对全部病例均进行多螺旋CT和MRA检查,以数字减影血管造影结果为金标准,就患者不同方法诊断后的效果进行评价.结果 多螺旋CT检查的诊断准确率为89.77%,低于MRA检查的98.86%(P<0.05).多螺旋CT检查后,患者轻度颈动脉狭窄占比低于MRA检查(P<0.05),患者颈动脉的中度狭窄、重度狭窄和闭塞情况,结果统计相近(P>0.05).多螺旋CT检查的漏诊率高于MRA检查(P<0.05),多螺旋CT检查的灵敏度、特异度低于MRA检查(P<0.05).多螺旋CT检查患者的血管内-中内膜厚度情况均小于MRA检查(P<0.05).结论 在诊断检查缺血性脑卒中患者时,相比多螺旋CT,选择MRA检查方法进行,诊断效果理想,不仅准确率高,还能减少漏诊发生,且有较高灵敏度及特异度,能为后续治疗工作开展提供有效支持.

Objective To explore the diagnostic efficacy of multi-slice CT and MRA(magnetic resonance angiography)in patients with hemorrhagic stroke.Method 88 patients with ischemic stroke admitted to our hospital were selected as the research subjects,and all cases were subjected to multi-slice CT and MRA.The results of digital subtraction angiography were used as the gold standard to assess the effectiveness of dfferent diagnostic methods for patients.Result The diagnostic accuracy of multi-slice CT examination was 89.77%,lower than the 98.86%of MRA examination(P<0.05).After multi-slice CT examination,the proportion of mild carotid artery stenosis in patients was lower than that in MRA examination(P<0.05),and the results of moderate,severe stenosis,and occlusion of the carotid artery in patients were statistically similar(P>0.05).The missed diagnosis rate of multi-slice CT examination is higher than that of MRA examination(P<O.05),and the sensitivity and specificity of multi-slice CT examination are lower than that of MRA examination(P<0.05).The thickness of the intima in the blood vessels of patients undergoing multi-slice CT examination was smaller than that of MRA examination(P<0.05).Conclusion In the diagnosis and examination of ischemic stroke patients,compared to multi-slice CT,choosing MRA examination method has ideal diagnostic results,not only high accuracy,but also reduces the occurrence of missed diagnosis,and has high sensitivity and specificity,providing basis support for subsequent treatment work.