目的评价MSCT平扫、头颈CTA以 及颅脑灌注(CTP)对TIA患者的应用价值。 方法 选取符合临床诊断标准的TIA患者30 例，所有病例均进行头颈CT平扫、CTA扫 描，颅脑CTP成像，获得相关图像数据。 结果 本组椎基动脉系统TIA共10例，其 中8例CTP脑灌注异常，CTA发现7例有椎基 动脉粥样斑块和管腔狭窄。颈内动脉系统 TIA共20例，其中15例CTP脑灌注异常， CTA发现14例有颈内动脉系统粥样斑块并 血管狭窄。结论 通过64层螺旋CT及时而 方便地检查出头颈动脉狭窄或闭塞的存在 及斑块性质，并分析软斑块发生的相关性 因素，了解相应脑血流动力学改变，不仅 能预测卒中风险，对TIA患者的早期发现 及后续的治疗有非常重要的临床意义。

Objective To evaluate the application value of MSCT scan, head and neck CTA and cerebral perfusion (CTP) in patients with TIA. Methods 30 cases meeting the standards of TIA clinical diagnosis were involved in this study, in which all patients underwent head and neck CT scan, CTA scan and cerebral perfusion imaging (CTP) to obtain the imaging data. Results Eight patients in ten cases with TIA related to the vertebral basal artery system, were detected with cerebral perfusion abnormalities, while seven patients with atheromatous plaques and luminal stenosis in CTA. 15 patients in 20 cases with TIA related to the Internal carotid artery system were detected with cerebral perfusion abnormalities and 14 patients were detected with atheromatous plaques and luminal stenosis in CTA. Conclusion With the help of 64-layer spiral CT we can quickly discover the stenosis or block in the arterys of head and neck, analyize the correlation factors of soft plaques, and get further information about the cerebral hemodynamic changes. We think that it has great clinical significance not only in predicting the risk of stroke, but also in early diagnosis of TIA patients and their following treatment.