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The value of preoperative prediction of ki67 and P53 expression in DCE-MRI texture analysis of rectal cancer
Yuhui Liu1, Ailian Liu1, and Mingxiao Wang1
1The First Affiliated Hospital of Dalian Medical University, Dalian, China, Dalian, China
 DCE-MRI texture analysis of rectal cancer can  predict  the value of Ki67,P53 expression status before operation.
Figure 1 A 52-year-old male patient with the rectal tubular adenocarcinoma. T2 image (a), Ktrans image (b), Kep image (c) and Ve image (d) were showed.
Figure2 Comparison of ROC Curves of the parameters with differences between the Ki67 high/low differentiation,ki67 analyzes the texture analysis of the three post-processing images of Ktrans, Ve, and Kev. After the statistically different parameters are combined, the combined diagnostic performance is obtained,the AUC was 0.923, with the sensitivity of 90.5% and the specificity of 50%.