摘要
Abstract
Objective To investigate the application value of CT perfusion imaging combined with CT angiography in tran‐sient ischemic attack of internal carotid artery system.Methods We recruited 63 cases with transient ischemic attack of internal carotid artery system ,who received examinations of head CT perfusion imaging and CT angiography within 7 days after symp‐tom onset using TOSHIBA 320 row helical CT. Then the CT perfusion parameters on both interest region and image area were comparatively analyzed ,as well as the consistency of two imaging examinations. Results Comparing the CT perfusion parame‐ters on interest and image area ,no significant difference was found (P> 0.05) ;however cerebral blood flow and the mean tran‐sit time of contrast agent on interest region were significantly lower than those on image area (P < 0.05) ;CT angiography found 54 cases with responsible vascular stenosis ,43 patients with the perfusion abnormalities ,9 cases with no responsible vas‐cular stenosis and 3 cases with no perfusion abnormalities. Compared with non‐responsible vascular stenosis patients ,CT per‐fusion abnormalities showed significantly higher positive rate in responsible vascular stenosis patients (P< 0.05).Conclusion CT perfusion can reflect cerebral perfusion condition in transient ischemic attack of internal carotid artery system ,and CT angi‐ography imaging can be used to detect vascular lesions ,additionally ,the combination of CT perfusion and CT angiography can display the etiology and provide imaging evidence for the diagnosis .关键词
CT 灌注成像/CT 血管造影/短暂性脑缺血发作Key words
CT perfusion/CT angiography/Transient ischemic attack分类
医药卫生
