Abstract: Objective To analyze the diagnostic value of CT and MRI in gliomas. Methods Eighty patients with suspected glioma admitted to Tongliao City Keerqin District First People's Hospital from January 2018 to January 2023 were selected as the research objects. CT and MRI examinations were performed respectively to summarize the imaging features of glioma in CT and MRI examinations. Pathological examination results were taken as the gold standard to analyze the diagnostic value of CT and MRI alone and combined examination for glioma. Results Low density lesions were the most common CT scan, and floral ring enhancement was the most common enhanced CT scan. High signal on T2WI and low signal on T1WI were the most common manifestations of MRI. Enhanced MRI mainly showed edge enhancement and nodule enhancement. The sensitivity, specificity and accuracy of CT, MRI and combined CT and MRI in the diagnosis of glioma were 76.92%, 90.38% and 96.15%, 75.00%, 85.71% and 96.43%, and 76.25%, 88.75% and 96.25%, respectively. The positive predictive values were 85.11%, 92.16%, 98.04%, and the negative predictive values were 63.64%, 82.76%, 93.10%, respectively. The above indexes were higher than those detected by CT alone (P<0.05). ROC curve analysis showed that CT, MRI and combined examination had certain diagnostic value for glioma. Conclusion CT combined with MRI has high diagnostic value for gliomas, which can display the range and image features of the lesion and provide imaging basis for the clinical diagnosis and treatment of gliomas.

Key words: computed tomography, magnetic resonance imaging, glioma of the brain, diagnostic value