肝脏 ›› 2018, Vol. 23 ›› Issue (6): 488-491.

• 论著 • 上一篇    下一篇

小肝癌MR信号特征与手术切除术后复发时间相关性分析

王巍巍, 任洪伟, 张见增, 安维民, 董景辉   

  1. 100039 北京 中国人民解放军第三○二医院放射科
  • 收稿日期:2018-02-06 发布日期:2020-04-26

Correlation analysis between MR signal characteristics and recurrence time after resection of small hepatocellular carcinoma

WANG Wei-wei,REN Hong-wei,ZHANG Jian-zeng,AN Wei-min,DONG Jing-hui   

  1. Department of Radiology,302 Military Hospital of China,Beijing 100039, China
  • Received:2018-02-06 Published:2020-04-26

摘要: 目的 分析小肝癌MR信号特征与手术切除术后无瘤生存期的相关性。方法 随访观察2010年12月至2017年1月解放军第三○二医院手术切除初发小肝癌且于术前1周至1月进行MR动态增强扫描检查的病例,选取术后复查MR发现肝脏新发癌灶或随访时间大于36个月复查MR肝脏无新发癌灶病例26例,测量并计算术前MR T1WI、T2WI、DWI序列及动态增强扫描动脉期、门静脉期、延迟期病变信号值与相邻肝背景信号值的比值。结果 26例患者中9例无瘤生存期≥36个月,10例12个月≤无瘤生存期<36个月,7例无瘤生存期<12个月。无瘤生存期≥36个月组和12个月≤无瘤生存期<36个月组间T2WI序列病灶信号特征差异有统计学意义(P<0.05),而T1WI序列、DWI序列和动态增强扫描各期病变信号特征与不同无瘤生存期组别间差异无统计学意义。结论 小肝癌MR信号特征可用于手术切除术后无瘤生存期的预测。

关键词: 小肝癌, 无瘤生存期, MR

Abstract: Objective To analyze the correlation between magnetic resonance (MR) signal characteristics and recurrence time after resection of small hepatocellular carcinoma (HCC). Methods Patients, who received small HCC with recurrent liver cancer or no recurrence within 36 months after operation from February 2011 to November 2016 in our hospital, were enrolled. All of the patients received dynamic contrast-enhanced MR scan within 1 month before operation. Preoperative MR, T1WI, T2WI and DWI sequence, as well as signal values of arterial, portal and delayed phase of dynamic enhanced scanning were recorded. The signal value ratio of the lesions to the adjacent liver in arterial, portal and delayed phase was calculated. Results For 26 patients enrolled in the study, including 9 cases with recurrence time of more than 36 months, 10 cases with recurrence time of more than 12 months and less than 36 months, and 7 cases with recurrence time of less than 12 months. Signal characteristics of T2WI sequence were statistically significant between the group with recurrence time more than 36 months and the group with recurrence time more than 12 months and less than 36 months (P<0.05). However, there was no statistical difference between DWI sequence and dynamic contrast-enhanced scan among groups with different recurrence time. Conclusion MR signal characteristics of small HCC could be used to predict the recurrence time after surgical resection.

Key words: Small hepatocellular carcinoma, Cancer free survival, MR