摘要
Abstract
Objective:To evaluate the application value of magnetic resonance angiography in the diagnosis of cere-brovascular diseases.Methods:Randomly select data from 100 patients with cerebrovascular diseases admitted be-tween March 2021 and December 2022,Each patient underwent angiography(the gold standard method of this study)and magnetic resonance angiography(MRI).The detection results of the two examination methods were compared,and the role of MRI in the diagnosis of cerebrovascular diseases was analyzed.Results:A total of 98 ca-ses were detected as positive in angiography,accounting for 98%;A total of 95 cases were detected as positive in magnetic resonance angiography,accounting for 95%.There was no statistically significant difference in the posi-tive detection rates between the two methods(χ2=1.3323,P>0.05).Among the 95 positive results of magnetic resonance angiography,94 were true positive and 1 was false positive;And the results include 1 true negative result and 4 false negative results.Its sensitivity,specificity,positive predictive value,and negative predictive value are 95.92%,50%,98.95%,and 20%,respectively.94 patients with true positive results in magnetic resonance angi-ography,of which 58 had a infarct area of<20mm and 36 had a infarct area of≥20mm;The vascular stenosis rate and normal blood vessel rate were 62.07%and 37.93%in patients with an infarct area of<20mm,which were higher than those with an infarct area of≥20mm,with a vascular stenosis rate of 35.00%(χ2=12.2312)and a normal blood vessel rate of 11.11%(χ2=7.9853).The vascular occlusion rate of 0%was lower than that of 63.89%(χ2=49.0595)in patients with an infarct area of≥20mm,and the differences were statistically signifi-cant(P<0.05).Conclusion:In clinical practice,magnetic resonance angiography can be used to detect cerebrovas-cular diseases.This method can achieve good diagnostic results,high accuracy,and clarify the vascular status of each patient.But it is still necessary to choose the most suitable diagnostic plan based on the actual situation of the patient,It can provide medical staff with abnormal vascular conditions for patients to develop treatment plans.关键词
核磁共振血管成像/脑血管疾病/检查/诊断Key words
Magnetic resonance angiography/Cerebrovascular diseases/Inspection/diagnosis分类
医药卫生
