【摘要】 探究MRI纹理分析在直肠癌术前T分期诊断中的价值及与肿瘤分化程度的关系。选取72例直肠癌患者作为研究对象，均行MRI纹理分析。结果显示，MRI纹理参数均值、对比度、自相关、熵、方差和均为直肠癌术前T分期影响因素，各参数联合诊断直肠癌术前T分期AUC为0.951,较单一参数有明显提高；直肠癌不同肿瘤分化程度患者MRI纹理参数存在明显差异，均值、自相关、熵、方差和与肿瘤分化程度呈负相关，对比度与肿瘤分化程度呈正相关(P<0.05)。MRI纹理参数均值、对比度、自相关、熵、方差和是直肠癌术前T期影响因素，可用于T分期诊断，且与肿瘤分化程度有关。更多还原

【Abstract】 This study explored the value of MRI texture analysis in the preoperative T staging diagnosis of rectal cancer and its relationship with the degree of tumor differentiation. Seventy-two patients with rectal cancer were selected as the research objects, and MRI texture analysis was performed. The results showed that the mean value of MRI texture parameters, contrast, autocorrelation, entropy, variance, and preoperative T staging of rectal cancer were all influencing factors. The preoperative T staging AUC of each parameter in the combined diagnosis of rectal cancer was 0.951, which was significantly higher than that of a single parameter. The MRI texture parameters of patients with different tumor differentiation levels are significantly different. The mean, autocorrelation, entropy, variance and the tumor differentiation are negatively correlated, and the contrast is positively correlated with the tumor differentiation(P<0.05). The mean value of MRI texture parameters, contrast, autocorrelation, entropy, and variance are the influencing factors of preoperative T stage of rectal cancer, which can be used for the diagnosis of T stage and are related to the degree of tumor differentiation.更多还原