中国医学科学院学报

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中国医学科学院学报

中国医学科学院学报 ›› 2017, Vol. 39 ›› Issue (2): 169-176.doi: 10.3881/j.issn.1000-503X.2017.02.002

• 论著 • 上一篇    下一篇

纹理特征分析在肝囊肿及肝血管瘤磁共振成像鉴别诊断中的价值

王波涛1, 刘刚2, 樊文萍1, 张晓欢1, 卢俞宏1, 陈志晔1,2()   

  1. 1中国人民解放军总医院海南分院放射科,海南三亚 572013
    2中国人民解放军总医院放射科,北京 100853
  • 收稿日期:2016-11-08 出版日期:2017-04-20 发布日期:2017-04-20
  • 作者简介:

    通信作者:陈志晔 电话:0898-37330852,电子邮件:yyqf@hotmail.com

Value of Texture Feature Analysis in the Differential Diagnosis of Hepatic Cyst and Hemangioma in Magnetic Resonance Imaging

Botao WANG1, Gang LIU2, Wenping FAN1, Xiaohuan ZHANG1, Yuhong LU1, Zhiye CHEN1,2()   

  1. 1Department of Radiology,Hainan Branch of Chinese PLA General Hospital,Sanya,Hainan 572013,China
    2Deapartment of Radiology,Chinese PLA General Hospital,Beijing 100853,China
  • Received:2016-11-08 Online:2017-04-20 Published:2017-04-20

摘要:

目的 比较肝囊肿及肝血管瘤在磁共振成像(MRI)常规T2加权(T2WI)序列图像纹理特征差异。方法 选取中国人民解放军总医院海南分院156例肝囊肿(A组:弥散加权成像呈等/低信号肝囊肿100例;B组:弥散加权成像呈高信号肝囊肿56例)及100例肝血管瘤(C组),分别对其MRI常规T2WI序列轴位图像进行纹理特征分析(选取能量、对比度、自相关、逆差距、熵5个纹理特征参数),采用独立样本t检验及Aspin-Welch检验各组之间的纹理特征差异。结果 5个纹理特征参数在3组数据中能量、对比度、自相关、熵差异均有统计学意义(A+B组比C组:P能量=0.000,P对比度=0.000,P自相关=0.000,P逆差距=0.822,P=0.000;A组比C组:P能量=0.000,P对比度=0.000,P自相关=0.000,P逆差距=0.092,P=0.000;B组比C组:P能量=0.000,P对比度=0.000,P自相关=0.000,P逆差距=0.046,P=0.009),同时结合受试者工作特征曲线发现对比度、自相关在肝囊肿及肝血管瘤鉴别中具有较高诊断价值。结论 肝囊肿及肝血管瘤在MRI常规T2WI图像的纹理特征显著不同,纹理特征分析可以作为基于MRI 常规T2WI图像鉴别肝囊肿与肝血管瘤的工具。

关键词: 肝囊肿, 肝血管瘤, 纹理分析, 磁共振成像

Abstract:

Objective To investigate the difference of texture on conventional T2-weighted image (T2WI) between hepatic cyst and hepatic hemangioma. Methods All the subjects included 156 patients with hepatic cyst [A group:100 cases with equi or low signal on diffusion weighted imaging (DWI);B group:56 cases with high signal on DWI] and 100 patients with hemangioma (C group). Conventional magnetic resonance imaging T2WI,DWI and dynamic contrast enhancement were performed on all the patients,and the texture analysis was applied with the images of T2WI,and the texture parameters included angular second moment,contrast,correlation,inverse difference moment,and entropy. Independent sample t-test and Aspin-Welch test were performed for the comparisons among groups. Results All the texture parameters showed significant difference among groups [(A+B) group vs. C group:P angular second moment=0.000,Pcontrast=0.000,Pcorrelation=0.000,Pinverse difference moment=0.822,Pentropy=0.000;A group vs. C group:Pangular second moment=0.000,Pcontrast=0.000,Pcorrelation=0.000,Pinverse difference moment=0.092,Pentropy=0.000;B group vs. C group:Pangular second moment=0.000,Pcontrast=0.000,Pcorrelation=0.000,Pinverse difference moment=0.046,Pentropy=0.009],and receiver operating characteristic curve analysis demonstrated that contrast and correlation had high differential diagnostic values between hepatic cyst and hemangioma. Conclusion Hepatic cyst and hemangioma present evident different texture characteristics,and the texture analysis may be considered as a simple and effective tool in the differential diagnosis between hepatic cyst and hemangioma based on the images of T2WI.

Key words: hepatic cyst, hepatic hemangioma, texture analysis, magnetic resonance imaging

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