高分辨率MRI联合DWI对直肠癌患者淋巴结转移的评估价值  

Evaluation Value of Lymph Node Metastasis in Rectal Cancer Patients Using High-Resolution MRI Combined with DWI

作　　者：凌盈盈 王金周 张百顺 LING Yingying;WANG Jinzhou;ZHANG Baishun(Department of Imaging,Xinyang Central Hospital,Xinyang 464000,China)

机构地区：[1]信阳市中心医院影像科,河南信阳464000

出　　处：《河南医学研究》2025年第7期1317-1320,共4页Henan Medical Research

摘　　要：目的探讨高分辨率磁共振成像(MRI)联合扩散加权成像(DWI)对直肠癌患者淋巴结转移的评估价值。方法本研究为一项回顾性研究,收集2021年1月至2022年12月信阳市中心医院62例经术后病理学检查证实的直肠癌患者临床资料,所有患者入院后均完成高分辨率MRI联合DWI检查,并于1周内进行直肠癌根治术治疗。以术后病理学检查结果为金标准,分析高分辨率MRI联合DWI对直肠癌患者淋巴结转移的评估价值。结果62例患者病理学检查共发现392个淋巴结,其中236个淋巴结影像学检查结果与术后病理学检查结果对应。经Kappa一致性度量,高分辨率MRI T 2WI序列、DWI单独检查直肠癌患者淋巴结转移结果与术后病理学检查结果的一致性一般(Kappa=0.681、0.739,P<0.001);高分辨率MRI联合DWI检查直肠癌患者淋巴结转移结果与术后病理学检查结果的一致性较好(Kappa=0.854,P<0.001)。高分辨率MRI联合DWI检查直肠癌患者淋巴结转移的准确度、灵敏度均高于高分辨率MRI常规序列或DWI单项检查,差异有统计学意义(P<0.05)。结论高分辨率MRI联合DWI在直肠癌患者淋巴结转移评估中具有较好的应用价值,可提高诊断的准确度及灵敏度。Objective To explore the value of high-resolution magnetic resonance imaging(MRI)combined with diffusion-weighted imaging(DWI)in evaluating lymph node metastasis in rectal cancer patients.Methods This was a retrospective study,and clinical data of 62 rectal cancer patients confirmed by postoperative pathological examination at Xinyang Central Hospital from January 2021 to December 2022 were collected.All patients completed high-resolution MRI combined with DWI examination after admission,and underwent rectal cancer radical surgery within one week.The value of high-resolution MRI combined with DWI in the evaluation of lymph node metastasis in patients with rectal cancer was analyzed with postoperative pathological examination results as the gold standard.Results The pathological examination of 62 patients revealed a total of 392 lymph nodes,of which 236 lymph node imaging results corresponded to postoperative pathological examination results.According to the Kappa consistency measure,the consistency between the results of high-resolution MRI T 2WI sequence and DWI alone in detecting lymph node metastasis in rectal cancer patients and the postoperative pathological examination results was average(Kappa=0.681,0.739,P<0.001).The consistency between the results of high-resolution MRI combined with DWI in detecting lymph node metastasis in rectal cancer patients and postoperative pathological examination was good(Kappa=0.854,P<0.001).The accuracy and sensitivity of high-resolution MRI combined with DWI in detecting lymph node metastasis in rectal cancer patients were higher than those of high-resolution MRI conventional sequence or DWI single examination,with a statistical significant difference(P<0.05).Conclusion The combination of high-resolution MRI and DWI has good application value in the assessment of lymph node metastasis in rectal cancer patients,which can improve the accuracy and sensitivity of diagnosis.

关 键 词：直肠癌 淋巴结转移 高分辨率磁共振成像 扩散加权成像 

分 类 号：R735.3[医药卫生—肿瘤]