Objective To explore the diagnostic efficacy of dual-source-CT and MRI in preoperative staging of colorectal cancer(CRC)patients.Methods A total of 102 CRC patients admitted to Deyang City People's Hospital from April 2020 to April 2022 were selected as the research objects.MRI and dual-source CT were used for scanning examination respectively.The diagnostic accuracy of dual-source CT and MRI were analyzed according to pathological examination results.ROC curve was used to compare the diagnostic value of dual-source CT and MRI in CRC patients.Results MRI results showed that the diagnostic accuracy of T1-2,T3,T4,N0,N1 and N2 were 90.91％,87.23％,86.36％,92.50％,88.57％and 77.77％,respectively.The dual-source CT examination showed that the correct diagnosis rates of T1-2,T3,T4,N0,N1 and N2 were 75.76％,78.72％,72.73％,75.00％,80.00％and 62.96％,respectively.Compared with dual-source CT,the AUC,sensitivity and specificity of MRI in CRC patients were significantly increased(P＜0.05).Conclusion Dual-source CT and MRI have high diagnostic efficiency in preoperative staging of CRC patients,and MRI has high diagnostic value.
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