Objective To explore the application value of one-stop computed tomography angiography(CTA)combined with computed tomography perfusion(CTP)in the clinical diagnosis of patients with acute cerebral infarction.Methods 63 patients with acute cerebral infarction who were treated in the hospital were selected between August 2020 and August 2021,and they underwent one-stop CTA combined with CTP scan.The CTP parameter in the infarct area,ischemic penumbra area and corresponding contralateral areas were analyzed among the patients,and the relationship between vascular stenosis degree and abnormal perfusion and collateral circulation formation was analyzed.Results CTP examination of 63 patients with acute cerebral infarction showed abnormal cerebral blood perfusion.The CBF and CBV of the affected side in the infarct area were lower than those of the contralateral area(P＜0.05),and the TTP was infinitely delayed compared to the contralateral area.The CBF of the affected side in ischemic penumbra area was lower than that in the contralateral area(P＜0.05),and the TTP was longer than that in the contralateral area(P＜0.05),but there was no significant difference in CBV compared to the contralateral area(P＞0.05).Among 63 patients with acute cerebral infarction,there were 31 cases of mild stenosis,24 cases of moderate stenosis,6 cases of severe stenosis and 2 cases of occlusion respectively,including 22 cases of collateral circulation formed.With the aggravation of vascular stenosis degree,the proportions of patients with infarct area,ischemic penumbra area and collateral circulation were gradually increased(P＜0.05).Conclusion CTP examination can quickly and accurately distinguish the infarct area and ischemic penumbra area,and CTA can evaluate the stenosis and occlusion of supplying artery.One-stop CTA combined with CTP scan has important guiding value in the clinical diagnosis of patients with acute cerebral infarction.
维普
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