Effect of T2WI 3D-space+RS-EPI DWI on the Diagnostic Accuracy of Preoperative Lymph Node Staging of Rectal Cancer
Objective To investigate the influence of T2WI 3D-space combined with RS-EPI DWI on the diagnostic accuracy of preoperative lymphatic staging of rectal cancer.Methods 96 patients diagnosed with rectal cancer and underwent imaging examination in our hospital from July 2020 to February 2022 were collected as the subjects of this study,and all the subjects were randomly divided into groups.The control group was selected for T2-WI 3D-space examination.In the study group,T2WI 3D-space and RS-EPI DWI were used for examination.The results of blind selection were presented to 2 highly qualified clinicians for differentiation of preoperative lymph node staging of rectal cancer,and the difference in accuracy of positive diagnosis of lymph node staging between the two groups was analyzed.Results The accuracy of lymph node staging in the study group was higher than that in the control group before rectal cancer operation,especially in T3 and T4,75.61％and 84.38％in the control group and 97.56％and 100％in the study group,the difference was statistically included(P＜0.05).The total accuracy rate and lymph node positive accuracy rate in the control group were 70％and 79.55％,respectively.The total accuracy rate and lymph node positive accuracy rate in the study group were 95％and 97.73％,respectively.The total accuracy rate and lymph node positive accuracy rate in the study group were higher than those in the control group,and the differences were included in statistics(P＜0.05).Conclusion T2-WI 3D-space combined with RS-EPI DWI can improve the accuracy of preoperative lymph node staging diagnosis of rectal cancer,and has high diagnostic value.It can be used for preoperative lymph node scanning of rectal cancer,providing an important theoretical basis for the diagnosis of clinicians.
T2WI 3D-spaceRS-EPI DWICan Rectal cancerLymphatic Stage of TumorDiagnostic Accuracy
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