不同节段直肠癌T分期的多模态1.5T MRI评估与病理对照研究  

Multi-modal 1.5T MRI Evaluation of T-staging of Different Segments of Rectal Cancer and Pathological Comparison

作　　者：刘业培 王园园[2] 李志湄 焦洪斌 李美玲 Liu Ye-pei;WANG Yuan-yuan;LI Zhi-mei;JIAO Hong-bin;LI Mei-ling(Department of Radiology,The Fifth Hospital of Xingtai,Xingtai 054000,Hebei Province,China;Department of Nursing,Xingtai Medical College,Xingtai 054000,Hebei Province,China)

机构地区：[1]邢台市第五医院放射科,河北邢台054000 [2]邢台医学高等专科学校护理系,河北邢台054000

出　　处：《中国CT和MRI杂志》2024年第4期137-140,共4页Chinese Journal of CT and MRI

基　　金：2022年度医学科研课题计划(2022ZC171)。

摘　　要：目的探讨分析多模态1.5T磁共振成像(MRI)对不同节段直肠癌T分期的评估价值。方法选取我院2018年6月至2023年3月收治的经肠镜下活检确诊的160例直肠癌患者作为研究对象,所有患者术前均进行多模态1.5T MRI检查,并接受全直肠系膜切除术(TME)治疗及术后病理分析,以病理结果为金指标,分析1.5T MRI对直肠癌T分期的评估价值;依据肠镜测量的肿瘤距肛门距离将全部患者分为低位直肠癌、中位直肠癌、高位直肠癌,分析多模态1.5T MRI检查对不同节段直肠癌T分期的评估价值及效能分析。结果1.5T MRI分期的评估准确率为89.38%;MRI T_(1)分期的准确率、敏感性、特异性、阳性预测值及阴性预测值分别为98.75%、94.74%、100.00%、100.00%、98.39%;T2分期的各项评估结果分别为91.25%、86.49%、92.68%、78.05%、95.80%;T3分期的各项评估结果分别为90.63%、75.61%、95.80%、86.11%、91.94%;T4分期的各项评估结果分别为100.00%、100.00%、97.48%、93.62%、100.00%;1.5T MRI低位及中位直肠癌T_(1)分期的准确率、特异性及阳性预测值最高,T4分期的敏感性及阴性预测值最高;高位直肠癌T_(1)分期的的评估准确率、敏感性、特异性及阴性预测值,T4分期的敏感性及阴性预测值最高;且三个阶段其他T分期的各项效能分析均较高。结论1.5T MRI评估效果显著,且对于直肠癌患者T分期的各项效能指标评估分析参考价值都较高,有更为准确的评估结果,值得临床上使用推广。Objective Explore and analyze the evaluation value of multimodal 1.5T magnetic resonance imaging(MRI)for T-staging of rectal cancer at different levels.Methods 160 rectal cancer patients diagnosed by colonoscopy biopsy in our hospital from June 2018 to March 2023 were selected as the study subjects.All patients underwent multimodal 1.5T MRI examination before surgery,and received total mesorectal excision(TME)treatment and postoperative pathological analysis.The value of 1.5T MRI in evaluating the T-stage of rectal cancer was analyzed based on the pathological results;Based on the distance between the tumor and the anus measured by colonoscopy,all patients were divided into low rectal cancer,medium rectal cancer,and high rectal cancer.The evaluation value and efficacy analysis of multimodal 1.5T MRI examination for T-staging of different segments of rectal cancer were analyzed.Results The evaluation accuracy of 1.5T MRI staging was 89.38%;The accuracy,sensitivity,specificity,positive predictive value,and negative predictive value of MRI T_(1) staging were 98.75%,94.74%,100.00%,100.00%,and 98.39%,respectively;The evaluation results of T2 staging were 91.25%,86.49%,92.68%,78.05%,and 95.80%,respectively;The evaluation results of T3 staging were 90.63%,75.61%,95.80%,86.11%,and 91.94%,respectively;The evaluation results of T4 staging were 100.00%,100.00%,97.48%,93.62%,and 100.00%,respectively;The accuracy,specificity,and positive predictive value of T_(1) staging for low and medium rectal cancer with 1.5T MRI are the highest,while the sensitivity and negative predictive value of T4 staging are the highest;The accuracy,sensitivity,specificity,and negative predictive values of T_(1) staging for high rectal cancer are evaluated,while T4 staging has the highest sensitivity and negative predictive values;And the performance analysis of other T stages in the three stages is relatively high.Conclusion The evaluation effect of 1.5T MRI is significant,and it has high reference value for evaluating and analyzing various efficac

关 键 词：直肠癌 1.5T磁共振成像 低位直肠癌 中位直肠癌 高位直肠癌 T分期 

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