超声机TIS、MI参数对脂肪肝B超图像纹理特征的影响初步研究  

A Preliminary Study about the Effect of TIS and MI on the Texture Features in Ultrasonic Fatty Liver Images

作　　者：赵媛[1] 程新耀[2] 徐明[2] 严斐斐[2] 周琳婧[2] 丁明跃[1] 

机构地区：[1]华中科技大学生命科学与技术学院生物医学工程系,图像信息处理与智能控制教育部重点实验室,武汉430074 [2]武汉大学中南医院心内科,武汉430071

出　　处：《中国医疗器械信息》2015年第6期1-5,26,共6页China Medical Device Information

摘　　要：采用灰度共生矩阵提取不同超声TIS、MI参数下大白兔非酒精性脂肪肝超声图像的纹理特征,研究了TIS、MI及灰度直方图的变化对其产生的影响。结果表明,TIS、MI变化时,脂肪肝超声图像纹理特征值基本保持稳定,而正常肝的超声图像纹理特征值会出现变化;灰度直方图的改变不影响特征值对脂肪肝和正常肝的区分,也不影响其随TIS、MI变化的趋势。The texture features in nonalcoholic fatty liver ultrasonic imagesof rabbit are extracted by using gray level co-occurrence matrixwith the different setting of TIS and MI,to study the impacts of TIS,MI and histogram on the texture features.The experimental results demonstrated that the texture features of fatty liver ultrasonic images are stable with the change of TIS and MI,while there do have some changes for the healthy liver images.The distinction between fatty and healthy liver by features and their trends with TIS,MI changes are independent of the changes in gray-histogram.

关 键 词：非酒精性脂肪肝 纹理分析 灰度共生矩阵 机械指数 软组织热指数 

分 类 号：R445.1[医药卫生—影像医学与核医学]