双源CT与MRI在结直肠癌术前分期中的临床价值分析

Clinical value analysis of dual-source CT and MRI in preoperative staging of colorectal cancer

目的探究对结直肠癌(CRC)患者应用双源CT、MRI检查对其术前分期的诊断效能。方法以2020年4月至2022年4月德阳市人民医院收治的102例CRC患者为研究对象,分别采用MRI、双源CT进行扫描检查;依据病理检查结果分析双源CT、MRI的诊断正确率;采用ROC曲线比较双源CT与MRI在CRC患者中的诊断价值。结果MRI检查结果显示,肿瘤分期T1~2、T_(3)、T_(4)、N_(0)、N_(1)、N_(2)的诊断正确率分别为90.91%、87.23%、86.36%、92.50%、88.57%、77.77%。双源CT检查结果显示,T_(1-2)、T_(3)、T_(4)、N_(0)、N_(1)、N_(2)的诊断正确率分别为75.76%、78.72%、72.73%、75.00%、80.00%、62.96%。对比双源CT,MRI在CRC患者中的ROC曲线下面积、敏感度和特异度明显升高(P<0.05)。结论双源CT、MRI在CRC患者术前分期诊断中均具有较高的诊断效能,MRI具有更高的诊断价值。

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 T_(1-2),T_(3),T_(4),N_(0),N_(1) and N_(2) 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 T_(1-2),T_(3),T_(4),N_(0),N_(1) and N_(2) 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.