首都医科大学学报 ›› 2013, Vol. 34 ›› Issue (3): 358-363.doi: 10.3969/j.issn.1006-7795.2013.03.007

• 医学影像学专题 • 上一篇    下一篇

SWI成像对肝细胞癌和肝血管瘤的鉴别诊断价值

李云芳, 李宏军, 赵大伟   

  1. 首都医科大学附属北京佑安医院放射科,北京 100069
  • 收稿日期:2013-03-05 出版日期:2013-06-21 发布日期:2013-06-17
  • 通讯作者: 李宏军 E-mail:lihongjun00113@126.com
  • 基金资助:

    北京市卫生系统高层次卫生技术人才培养计划(2009-3-55)。

Differential diagnostic value of two dimensional multi-breath-hold susceptibility weighted imaging for hepatocellular carcinoma and hepatic hemangioma

LI Yunfang, LI Hongjun, ZHAO Dawei   

  1. Department of Radiology, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
  • Received:2013-03-05 Online:2013-06-21 Published:2013-06-17
  • Supported by:

    This study was supported by the Academic Leader of High-level Health personnel (2009-3-55).

摘要:

目的 探讨磁敏感加权成像(susceptibility weighted imaging,SWI)对肝细胞癌和肝血管瘤的检出和鉴别效能。方法 2012年1月至2月进行SWI序列检查的肝细胞癌患者41例共51个病灶;血管瘤患者13例共23个病灶纳入本次研究。2位资深读片者分别阅读SWI图像并测量病灶和邻近肝实质在SWI上的信号强度和标准差,根据公式计算病灶的信噪比(signal noise ratio,SNR),病灶信号相对肝脏信号的对噪比(contrast noise ratio,CNR)。比较SWI序列对两种病灶之间检出率及SNR、CNR值的差异。结果 SWI序列对肝细胞癌和血管瘤检出率之间的差异无统计学意义。肝血管瘤的SNR、CNR值在SWI序列高于肝细胞癌,差异有统计学意义(P<0.05)。结论 SWI对肝细胞癌和血管瘤的检出和鉴别诊断有辅助意义。

关键词: 磁敏感加权成像, 肝细胞癌, 肝血管瘤

Abstract:

Objective To compare the efficacy of susceptibility weighted imaging (SWI) in detection and differentiation of hepatocellular carcinoma and hemangioma. Methods The data of 41 patients with 51 hepatocellular carcinoma lesions and 13 patients with 23 hemangioma lesions during Jan to Feb,2012 were selected.All patients underwent MR including SWI in the study. Two radiologists interpreted SWI images and measured the signal intensity (SI) of the lesions,adjacent liver parenchyma SI and standard deviation (Sd), while the signal noise ratio (SNR) and the contrast noise ratio (CNR) were calculated. The detecting rates of the lesions and the mean SNR and CNR were compared between the two diseases. Results There were no significant difference in the detecting rate of hemangioma and hepatocellular carcinoma by SWI. The SNR and CNR of hemangioma were higher than those of hepatocellular carcinoma on DWI (P<0.05), and there was a significant difference between the two diseases as for the SNR and CNR. Conclusion SWI is valuable in diagnosis and differential diagnosis of hepatocellular carcinoma and hemangioma.

Key words: susceptibility weighted imaging, hepatocellular carcinoma, hemangioma

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