Study on the Diagnostic Value of Magnetic Resonance Imaging and Computed Tomography in Elderly Patients with Multiple Cerebral Infarctions
Objective To explore the diagnostic value of magnetic resonance imaging(MRI)and computed tomography(CT)in elderly patients with multiple cerebral infarctions.Methods 82 elderly patients suspected of multiple cerebral infarctions who were admitted to the Department of Radiology of the People's Hospital of Yucheng District,Luohe City from October 2021 to September 2023 were selected as the research subjects.All patients underwent MRI and CT examinations.The result of magnetic resonance(MR)brain perfusion imaging were used as the"gold standard"for the diagnosis of multiple cerebral infarctions in the elderly.The detection conditions,diagnostic efficiency,detection of lesions in different parts,examination time and cost under different examination method were compared.Results The result of MR brain perfusion imaging showed that 79 patients were patients with multiple cerebral infarctions and 3 were non-multiple cerebral infarction patients.Compared with the positive rate of 82.93%in CT examination,the positive rate of MRI examination was 95.12%,which was higher,and the difference was statistically significant(P＜0.05).The sensitivity,specificity and accuracy of MRI were higher than those of CT,among which the differences in sensitivity and accuracy were statistically significant(P＜0.05).The result of the gold standard examination showed that there were 49,36,30,21 and 38 lesions in the basal ganglia area,periventricular area,temporal lobe,thalamus and frontal lobe,respectively.The detection rates of lesions in the basal ganglia area and temporal lobe area were statistically significant between the two examination method(P＜0.05),while the detection rates of lesions in the periventricular area,thalamus and frontal lobe area were not statistically significant(P＞0.05).The cost of MRI examination was higher than that of CT,and the examination time was longer than that of CT,and the difference was statistically significant(P＜0.05).Conclusion Both MRI and CT can be used for the diagnosis of multiple cerebral infarctions in the elderly.Among them,the positive detection rate,accuracy,sensitivity,and detection of lesions in the basal ganglia area and temporal lobe area of MRI are superior,but the cost of this examination is higher and the examination time is longer.
magnetic resonance imagingcomputed tomographymultiple cerebral infarctionsdiagnostic efficiency
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