肝细胞癌的MRI诊断  

MRI Diagnosis of Hepatocellular Carcinoma

作　　者：付建设[1] 仲继志[1] 赵京龙 牛凤枝[1] 吴红梅 瞿红霞 王芳茹[1] 

机构地区：[1]西安医科大学第二临床医学院医学影像中心,710004

出　　处：《现代医用影像学》1998年第1期13-16,共4页Modern Medical Imageology

摘　　要：目的：提高MRI对肝细胞癌的诊断与鉴别诊断能力。通过分析MRI征象，建立肝细胞癌的MRI信号变化模式。材料与方法：28例肝细胞癌患者均接受MRI检查。男24例，女4例，年龄32～80岁，平均52岁。检查使用0．5T超导型MR成像系统。常规SE序列T1W成像．TSE序列T2W双回波成像。采用双盲法作前瞻性回顾分析。结果：MRI能清楚显示肝细胞癌的部位，大小、形态、数目，与周围组织关系及继发改变。其MR信号变化具有一定特征性，即T1WI多呈低信号强度，T2WI第一回波（PDWI）呈稍高信号强度或等信号强度，T2WI第二回波多呈不均质性稍高信号强度。结论：根据MRI表现，尤其是信号变化特征，对肝细胞癌能作出定性诊断。并建议把SE序列T1WI，TSE序列T2WI双回波成像技术作为肝细胞癌的常规和首选检查方法。Purpooe: To improve the dbenostic and differential dingnostic efficacy of hepatocellular carcinoma (HCC) byanalrring and establishing MRI signal patters Meterlal, and methods: 28 Cases (male 24 cases, female 4 cases, average 52years) with HCC were studied with 0.5T magnet using spin -echo (SE) T1 -weighted and tutbo-spin -echo (TSE ) T2-weight-ed double -echo image. MRI findings were retrospectively analysed by independent double -blind reading. Results: MRI clearlydemonstrated clinically sueful imformations about the location, size, shape, number of HCC, as well as its relation with surround-ing structutes and secondary changes. Characteristic MRI signal changes were found in HCC, eg. Main MRI features of HCC pre-sented as many byPointensity on T1 WI, Orisointensity or slightly hyper intensity on T2 Wi first -echo (PDWI),as many inhomoge-neously slishtly hyperintensity on T2 WI second-echo. Conclusion: According to MRI findings, especial the MRI sisnal changes,confuming diagnosis of HCC could be made MRISE T1 WI and TSE T2 WI double -echo image could be routinely used as the fitstinvestigation for HCC.

关 键 词：肝细胞癌 MRI 肝肿瘤 

分 类 号：R734.704[医药卫生—肿瘤] R730.4[医药卫生—临床医学]