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经射频消融治疗后复发的微小肝癌患者磁共振图像特点分析

作者：房海燕高敏徐亚运

关键词：肝细胞癌微小肝癌磁共振成像动态增强扫描

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出版年,卷(期):页码：2018,10(1):50-53

摘要：

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，T 1 加权成像提示70个
（88.61%）低信号癌灶，T 2 加权成像提示71个（89.87%）高信号癌灶，双回波T 1 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。

Abstract: Objective To analyze the characteristics of magnetic resonance (MR) images in recurrent patients
with micro hepatocellular carcinoma (MHCC) after radiofrequency ablation therapy of hepatocellular
carcinoma. Methods A retrospective analysis of 72 cases (79 lesions) of recurrent MHCC after radiofrequency
ablation therapy of hepatocellular carcinoma was performed. Plain scan and dynamic contrast-enhancement
of MR were performed to analyze the image features and the changes of the lesions. Results The diffusion
weighted imaging indicated 74 (93.67%) high signal lesions, T 1 weighted imaging showed 70 (88.61%)
low signal lesions, T 2 weighted imaging showed 71 (89.87%) high signal lesions, dual echo T 1 weighted
imaging 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 and
21 (26.58%) lesions were enhancement pseudocapsule in delayed phase. The re-examination found neoplastic
lesions enlarged within 3～12 months. Conclusions Plain scan and dynamic contrast-enhancement scan of
MR can be used as important methods for the examination of patients with MHCC, which has a good effect
on the diagnosis and review of recurrent MHCC patients after the radiofrequency ablation treatment of
hepatocellular carcinoma.

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