摘要
目的分析经肝细胞癌射频消融治疗后复发的微小肝癌(micro hepatocellular carcinoma,MHCC)患者磁共振(magnetic resonance,MR)成像的图像特点。方法回顾性分析本院经肝细胞癌射频消融治疗后复发的72例MHCC患者(79个病灶),均行MR平扫和动态增强扫描,分析其图像特点及复查病灶的变化。结果扩散加权成像提示74个(93.67%)高信号癌灶,T1加权成像提示70个(88.61%)低信号癌灶,T2加权成像提示71个(89.87%)高信号癌灶,双回波T1加权成像提示含脂质成分癌灶7个(8.86%)。动态增强显示"快进慢出"癌灶25个(31.65%),"快进快出"癌灶54个(68.35%),延迟期假包膜强化癌灶21个(26.58%)。3~12个月内复查发现癌灶有所增大。结论 MR平扫和动态增强扫描是检查MHCC患者的重要方法,其对诊断与检查肝细胞癌射频消融治疗后复发的MHCC患者具有良好的作用。
Objective To analyze the characteristics of magnetic resonance （MR） images in recurrent patientswith micro hepatocellular carcinoma （MHCC） after radiofrequency ablation therapy of hepatocellularcarcinoma. Methods A retrospective analysis of 72 cases （79 lesions） of recurrent MHCC after radiofrequencyablation therapy of hepatocellular carcinoma was performed. Plain scan and dynamic contrast-enhancementof MR were performed to analyze the image features and the changes of the lesions. Results The diffusionweighted imaging indicated 74 （93.67%） high signal lesions, T1 weighted imaging showed 70 （88.61%）low signal lesions, T2 weighted imaging showed 71 （89.87%） high signal lesions, dual echo T1 weightedimaging showed 7 （8.86%） lesions containing lipid composition. Dynamic-enhancement imaging showed 25（31.65%） lesions were “fast in and slow out” type, 54 （68.35%） lesions were “fast in and fast out” type and21 （26.58%） lesions were enhancement pseudocapsule in delayed phase. The re-examination found neoplasticlesions enlarged within 3～12 months. Conclusions Plain scan and dynamic contrast-enhancement scan ofMR can be used as important methods for the examination of patients with MHCC, which has a good effecton the diagnosis and review of recurrent MHCC patients after the radiofrequency ablation treatment ofhepatocellular carcinoma.
作者
房海燕
高敏
徐亚运
FANG Hai-yan;GAO Min;XU Ya-yun(Department of Radiology, the Af-liated Taikang Xianlin Drum Tower Hospital of Nanjing University Medical School, Nanjing 210046, China)
出处
《中国肝脏病杂志（电子版）》
CAS
2018年第1期50-53,共4页
Chinese Journal of Liver Diseases：Electronic Version
关键词
肝细胞癌
微小肝癌
磁共振成像
动态增强扫描
Hepatocellular carcinoma
Micro hepatocellular carcinoma
Magnetic resonance imaging
Dynamic contrast-enhancement scan
