MRI评估直肠癌不同T分期的价值分析  

Value of MRI in Predicting Diferent T-Stages of Rectal Cancer

作　　者：周豪[1] 周亮[2] 张迎[1] 李岩[1] 朱海旭[3] 曲源[1] ZHOU Hao;ZHOU Liang;ZHANG Ying;LI Yan;ZHU Hai-xu;QU Yuan(Imaging Center,the People’s Hospital of Xinjiang Uygur AutonomousRegion,Urumqi 830001,China;Department of Ultraound,the People’s Hospital of Xinjiang Uygur AutonomousRegion,Urumqi 830001,China;Department of Nuclear Medicin,the People’s Hospital of Xinjiang Uygur AutonomousRegion,Urumqi 830001,China)

机构地区：[1]新疆维吾尔自治区人民医院影像中心,新疆乌鲁木齐830001 [2]新疆维吾尔自治区人民医院超声科,新疆乌鲁木齐830001 [3]新疆维吾尔自治区人民医院核医学科,新疆乌鲁木齐830001

出　　处：《中国CT和MRI杂志》2023年第2期140-141,144,共3页Chinese Journal of CT and MRI

摘　　要：目的 分析MRI术前评估直肠癌不同T分期的价值。方法 以行直肠癌扩大根治术的患者为研究对象,患者术前均行MRI检查评估直肠癌的T分期,并行病理学检查确定其病理分期。通过诊断试验与受试者工作特征(ROC)曲线来分析MRI术前评估直肠癌不同分期的价值。结果 MRI术前评估直肠癌患者T分期的总体正确率为58.51%。其评估直肠癌T_(3)分期的价值可达中等,高于其评估T_(1)、T_(2)和T_(4)期的价值,而其评估T_(1)、T_(2)和T_(4)的价值均较低。MRI评估T_(3)分期的灵敏度较高,特异度和正确率尚可,假阴性率较低,阴性预测价值较高,但其假阳性率较高,阳性预测价值较低。结论 应用MRI评估直肠癌T分期时,应考虑到MRI术前评估直肠癌不同T分期的价值,以便做出更准确的分期诊断。Objective To analyze the value and clinical indexes of MRI in preoperatively predicting diferent T-stages of rectal cancer. Methods Patients with extended radical operation of colorectal cancer were enrolled in this study. MRI was preoperatively performed to predict the T-stage of rectal cancer in all patients and histopathological examination was performed to determine the pathological stage. The value and clinical indexesof MRI in preoperatively predicting diferent T-stages was analyzed with diagnostic test and receiver operating characteristic curve. Results The total acuracy of MRI in preoperatively predicting the T-stage of rectal cancer was 58.51%. The value of MRI in preoperatively predicting T_(3)was moderate,and the value in preoperatively predicting T_(1),T_(2)and T_(4)was low.The value was higher in predicting T_(3)than in predicting T_(1),T_(2)and T_(4). The sensitivity was relatively higher for MRI in predicting T_(3),the specificity and acuracy were moderate,the false negative rate was relatively lower,and the negative predictive value was relatively higher. However,its false positive rate was relatively higher and positive predictive value was relatively lower. Conclusion The value of MRI in predicting different T-stages should be considered to make an accurate prediction when it is applied in preoperatively predicting the T-stage of rectal cancer.

关 键 词：直肠癌 T分期 磁共振成像 

分 类 号：R735.37[医药卫生—肿瘤] R445.2[医药卫生—临床医学]