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目的探讨经颅多普勒(TCD)、磁共振动脉造影(MRA)对无症状脑梗死(SCI)的诊断价值。方法回顾性分析我院收治的80例SCI患者的临床资料,患者均行头颅MRI、MRA和TCD检测,对比分析检测结果。结果MRI检出梗死灶的患者中有65例行MRA检查,60例发现脑血管异常,异常检出率为92.31%。其中大脑中动脉异常最为常见为34例。80例患者均行TCD检查,74例发现异常,异常检出率为92.50%,多数表现为血流速增快。结论MRI是确诊SCI的重要条件,MRA能显示病变血管,TCD对SCI有早期辅助诊断价值,两者合用有助于早期发现颅内血管病变。
Objective To investigate the diagnostic value of transcranial Doppler (TCD) and magnetic resonance angiography (MRA) in asymptomatic cerebral infarction (SCI). Methods The clinical data of 80 patients with SCI admitted to our hospital were analyzed retrospectively. All the patients underwent MRI, MRA and TCD, and the results were compared and analyzed. Results MRA was detected in 65 patients with MRI and 60 patients with cerebrovascular abnormality. The detection rate of abnormality was 92.31%. Including the most common middle cerebral artery in 34 cases. 80 patients underwent TCD examination, abnormal findings in 74 cases, the abnormal detection rate was 92.50%, the majority manifested as faster blood flow. Conclusion MRI is an important condition for the diagnosis of SCI. MRA can show the pathological changes of blood vessels. TCD can be an early auxiliary diagnostic value for SCI. Combined use of both can be helpful for the early detection of intracranial vascular lesions.