常规磁共振成像联合弥散加权成像技术在腹部良恶性淋巴结病变诊断中的应用  

Application of MRI combined with diffusion weighted imaging in the diagnosis of benign and malignant abdominal lymph node lesions

作　　者：李锋 谢程 罗志坚 王武华 LI Feng;XIE Cheng;LUO Zhijian;WANG Wuhua(Department of Imaging,the First People's Hospital of Fuzhou,Fuzhou,Jiangxi,344000,China)

机构地区：[1]抚州市第一人民医院影像科,江西抚州344000

出　　处：《当代医学》2022年第31期100-102,共3页Contemporary Medicine

基　　金：抚州市指导性科技计划项目(抚科计字〔2020〕10号,第41项)。

摘　　要：目的分析常规磁共振成像(MRI)联合弥散加权成像技术(DWI)在腹部良恶性淋巴结病变诊断中的应用价值。方法选取2019年3月至2021年2月本院收治的60例腹部淋巴结病变患者作为研究对象,按照手术结果将其中21例腹部良性淋巴结病变患者作为对照组,另外39例腹部恶性淋巴结病变患者作为研究组。两组术前均接受MRI联合DWI检查。比较两组影像学特征、定性诊断准确率,囊变、环形强化诊断情况和表观弥散系数(ADC)值。结果对照组多发5例,单发16例;病变位置:肠系膜周围或根部、门腔间隙、肝门区域。单发患者影像特征主要呈类圆形或圆形;多发患者中,出现粘连、融合成块3例,周围脂肪间隙不清;呈串珠状3例,边界清晰。研究组多发27例,单发12例;病变位置:门腔间隙、肝胃间隙、肝门等区域。单发患者影像特征主要呈类圆形或圆形;多发患者呈不规则块状、团块状或者分叶状,周围脂肪间隙不清。MRI联合DWI检查的定性诊断准确率明显高于单独MRI检查、DWI检查(P<0.05)。研究组环形强化率明显高于对照组(P<0.05),两组囊变率比较差异无统计学意义。研究组ADC值为(1.051±0.201)×10^(3) mm^(2)/s,明显低于对照组的(1.704±0.303)×10^(3) mm^(2)/s,差异有统计学意义(P<0.05)。结论在定性诊断腹部淋巴结病变时,MRI联合DWI检查的应用价值较高,可将ADC值作为定性诊断淋巴结的辅助指标。Objective To analyze the value of conventional magnetic resonance imaging(MRI)combined with diffusion weighted imaging(DWI)in the diagnosis of benign and malignant abdominal lymph node lesions.Methods A total of 60 patients with lymph node lesions admitted to our hospital from March 2019 to February 2021 were selected as the research subjects.According to the surgical results,21 patients with benign abdominal lymphadenopathy were selected as the control group,and the other 39 patients with malignant abdominal lymphadenopathy were selected as the study group.Both groups received MRI and DWI before operation.The imaging features,qualitative diagnostic accuracy,cystic lesions,ring enhancement and apparent diffusion coeffic ient(ADC)values were compared between the two groups.Results Among the control group,the number of multiple and single cases were 5 and 16 respectively;Lesion location:around mesentery or root,portal space and hilar area.The single patient was mainly quasi round or round;among multiple patients,3 patients adhered and fused into blocks,and the surrounding fat space was unclear;3 patients were beaded with clear boundaries.Among the study group,the number of multiple and single cases were 27 and 12 respectively;lesion location:portal space,hepatogastric space,hilar and other areas.The single patient was mainly quasi round or round;multiple patients were irregular,lumpy or lobulated,and the surrounding fat space was unclear.The qualitative diagnostic accuracy of MRI combined with DWI was significantly higher than MRI and DWI alone(P<0.05).The ring enhancement rate in the study group was significantly higher than the control group(P<0.05),there was no significant difference in cystic rate between the two groups.The ADC value of the study group was(1.051±0.201)×10^(3) mm^(2)/s,which was significantly lower than(1.704±0.303)×10^(3) mm^(2)/s of the control group(P<0.05).Conclusion In the qualitative diagnosis of abdominal lymph node lesions,the application value of MRI combined with DWI is very import

关 键 词：磁共振成像 弥散加权成像技术 腹部 淋巴结病变 定性诊断 

分 类 号：R733[医药卫生—肿瘤]