磁共振扩散加权成像联合CT在直肠癌术前分期及淋巴结阳性中的诊断价值  

Diagnostic value of MR diffusion-weighted imaging combined with CT in preoperative staging of rectal cancer and positive lymph nodes

作　　者：李桂珍 刘文艳 桑节峰 Li Guizhen;Liu Wenyan;Sang Jiefeng(Department of Imaging,Ganyu District People′s Hospital of Lianyungang,Jiang su 222100,China)

机构地区：[1]江苏省连云港市赣榆区人民医院影像科,222100

出　　处：《实用医学影像杂志》2024年第3期197-200,共4页Journal of Practical Medical Imaging

摘　　要：目的 探讨磁共振扩散加权成像(MR-DWI)联合CT在直肠癌术前分期及淋巴结阳性的诊断价值。方法 研究对象为2019年1月至2023年11月于本院行直肠癌手术的患者,共80例,术前常规影像学检查,先后采用MR-DWI和CT检查,诊断标准为术后病理检查结果,分析联合诊断在术前分期和淋巴结阳性中的应用价值。结果 MR-DWI联合CT术前分期的准确率明显高于单项检查,差异有统计学意义(P<0.05);MR-DWI联合CT对淋巴结的诊断灵敏度、特异度及准确率明显高于单项检查,差异有统计学意义(P<0.05)。结论 MRDWI联合CT在直肠癌术前分期和淋巴结阳性诊断中具有极高应用价值,能够弥补单一检查的不足,提高术前分期和淋巴结阳性的诊断准确性,为疾病诊治提供可靠依据,值得临床应用。Objective To explore the diagnostic value of MR diffusion-weighted imaging(MR-DWI)combined with CT in preoperative staging and positive lymph nodes of rectal cancer.Methods The study subjects were 80 patients with rectal cancer who underwent surgery in our hospital from January 2019 to November 2023.Routine preoperative imaging examination was performed,and MR-DWI and CT examination were used successively.The diagnostic criteria were postoperative pathological examination results.The application value of combined diagnosis in preoperative staging and positive lymph nodes was analyzed.Results The accuracy of MR-DWI combined with CT in preoperative staging was significantly higher than that of a single examination,with statistically significant differences(P<0.05).The diagnostic sensitivity,specificity,and accuracy of MR-DWI combined with CT in lymph nodes were significantly higher than those of a single examination,with statistically significant differences(P<0.05).Conclusion MR-DWI combined with CT has a high application value in the preoperative staging and positive lymph node diagnosis of rectal cancer,which can make up for the shortcomings of a single examination,improve the diagnostic accuracy of preoperative staging and positive lymph nodes,provide a reliable basis for the diagnosis and treatment of the disease,and is worthy of clinical application.

关 键 词：直肠肿瘤 弥散磁共振成像 体层摄影术 X线计算机 术前分期 淋巴结阳性 

分 类 号：R735.37[医药卫生—肿瘤] R445.2[医药卫生—临床医学] R730.44