节点文献
短暂性脑缺血发作的影像学研究
IMAGE STUDY OF TRANSIENT ISCHEMIC ATTACK
【摘要】 本文对104例短暂性脑缺血发作(TIA)的患者进行了CT和(或)MRI检查,发现脑梗塞28例(26.9%),其中50例颈内动脉系TIA患者发现梗塞19例(38.0%),54例椎基底动脉系TIA患者发现梗塞9例(16.7%)。对后组病人拍颈椎片均显示不同的改变,三维多普勒(TCD)均显示椎基底动脉痉孪。因此结合文献考虑颈内动脉系的TIA病因主要是微栓子,发生脑梗塞率较高,而椎基底动脉系TIA病因主要是血管痉挛,发生脑梗塞率低。由于TIA患者的脑梗塞率达26.7%~77%。故认为,TIA的概念除传统的突然发作、持续时间短暂、症状体征在24小时内完全消失及可以反复发作外,应加上影像学可见脑组织有小的软化灶这一现象,以统一临床与影像学之间的关系。
【Abstract】 CT or MRI test was carried out to 104 patients with transient ischemic attack(TIA),28 cases with cerebral infarction were found among them, 19(38.0%)of 28 caseswere found in 50 cases with TIA of internal carotid artery system,9(16.7%)were found in54 cases with TIA of vertebra basilar system.The later patients X-rayed to cervical vertebraedisplayed an abnormality. TCD to them also displayed vertebra basilar spasm. So the etiolo-gy of the patients with TIA of internal carotid artery system is mainly the microemboluscombined with other literatures.The incidence of cerebral infarction was higher,while theetiology of the patients with TIA of vertebra basilar system was mainly blood spasm. The in-cidence of cerebral infarction was lower.Due to the incidence of cerebral infarction being26.7%~77.0%displayed by CT to TIA patients,besides the traditonal sudden attack,las-ting in short time,system signs completely disappering in 24 hours and repeated attacks easi-ly,the concept of TIA shoud and image visible brain tisue small malacic foci to unificate therelationship between clinic and image.
【Key words】 trancient ischemic attack; computed tomography(CT); magnetic resonanceimaging(MRI); cerebral infarction;
- 【文献出处】 河南医学研究 ,HENAN MEDICAL RESEARCH , 编辑部邮箱 ,1996年02期
- 【分类号】R743.31
- 【被引频次】1
- 【下载频次】31