Swanson P D, Calanchini P R, Dyken M L, Gotshall R A, Haerer A F, Poskanzer D C, Price T R, Conneally M
JAMA. 1977 May 16;237(20):2202-6.
Angiographic procedures were carried out on 36% of 1,328 patients suspected of having transient ischemic attacks (TIA). Among six participating centers, this ranged from 13% to 82%. This large difference might be related to the number of patients considered good surgical candidates and differences in the use of screening noninvasive diagnostic techniques. Arch studies, using catheter techniques, were performed most often. Although 13% of the patients had transient complications, permanent neurological deficits occurred in only 0.65%. Angiographic lesions were best correlated to clinical symptoms in those patients thought to definitely have carotid artery system TIA but were commonly seen in all other groups. Thus, clinical correlation was poor.
在1328名疑似短暂性脑缺血发作（TIA）的患者中，36%接受了血管造影检查。在六个参与中心中，这一比例从13%到82%不等。这种巨大差异可能与被认为是良好手术候选者的患者数量以及筛查性非侵入性诊断技术的使用差异有关。最常采用的是使用导管技术的血管造影研究。虽然13%的患者出现短暂并发症，但永久性神经功能缺损仅发生在0.65%的患者中。血管造影病变与那些被认为肯定患有颈动脉系统TIA的患者的临床症状相关性最好，但在所有其他组中也很常见。因此，临床相关性较差。
