Objective To investigate the value of MRI and CT in SIOP staging of Wilms tumor(WT)in children.Methods Thirty-two WT cases confirmed pathologically in Anhui Children's Hospital from January 2020 to December 2022 were analyzed retrospectively.The imaging characteristics were analyzed,and SIOP staging was performed on all WT ca-ses,and the differences between MRI and CT imaging staging were compared.Results The accuracy rates of MRI and CT were 81.25% and 71.88% (P>0.05)in SIOP stageⅠ,78.12% and 59.38% (P>0.05)in stageⅡ,96.88% and 87.50% (P>0.05)in stage Ⅲ,respectively.The accuracy of stage Ⅳ and Ⅴ was 100% (P>0.05),and the total staging accuracy was 91.25% and 83.75% (P<0.05),respectively.There was no statistical difference between MRI and CT in the staging accuracy of stageⅠ-Ⅴ of SIOP,while the difference in the total staging accuracy was statistically sig-nificant.Conclusion Both MRI and CT have high accuracy in WT SIOP staging of children.In particular,MRI has bet-ter staging value in the overall staging accuracy and can provide more image reference information.
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