Analysis of the Application Effect of CT and MRI Scanning in the Preoperative Diagnosis of Glioma
Objective To explore the application value of CT and MRI in the preoperative diagnosis of glioma.Methods The study subjects were all selected from 50 glioma patients admitted to our hospital and the First Affiliated Hospital of Henan University of Science and Technology from December 2018 to March 2022.All patients underwent CT and MRI scans,and the results of the two diagnostic methods were analyzed.Results In the CT examination,15 cases of lesions were simple low-density shadows,25 cases of mixed density shadows,10 cases of high-density shadows,and 3 cases with calcification.Among patients with astrocytoma,8 cases had no obvious enhancement,and 16 cases had obvious enhancement.8 cases were characterized by ring enhancement,The thickness of the annular wall is uneven,with cystic liquefaction and necrosis in the low-density area,3 cases of simple parenchymal patchy enhancement,and 5 cases of rosette enhancement,patchy or capillary striated enhancement occurred in parenchymal phase;MRI examination,star The low signal or equal signal of cell tumor is stored in the T1WI sequence,and the high signal is stored in the T2WI sequence.ln the enhanced scan,there was no significant enhancement of the image in 2 cases,4 cases of patchy obvious enhancement,8 cases of patchy mild to moderate enhancement,and 10 cases of uneven spot enhancement.In glioblastoma,the low signal is stored in the T1WI sequence,the high signal is stored in the T2WI sequence,and there is obvious edema around the lesion.In the enhanced scan,there are obvious enhancement features of flower ring,more patients with corpus callosum involvement,and deformation of the longitudinal fissure pool.The low signal of Oligodendroglioma is stored in the T1WI sequence,and the high signal is stored in the T2WI sequence.There are obvious calcification and cystic changes in the lesion,and moderate to mild edema.After enhanced scanning,there are lines and spots with moderate to mild Strengthen features.The specificity and sensitivity of CT in diagnosing glioma were significantly higher than that of CT and MRI alone(P＜0.05).Conclusion The specificity and sensitivity of MRI combined with CT examination for glioma are high,and the surgical plan can be formulated based on the image characteristics of the lesion and the cumulative range of the lesion.
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