基于超声射频回波分布的脂肪厚度测量  

Detection of Fat Thickness Based on the Distribution of Ultrasonic RF Echos

作　　者：廖长义[1] 王华[1] 周慧婷[1] 汤旭东[1] 吕朋[1] 

机构地区：[1]重庆医科大学生物医学工程学院,省部共建超声医学工程国家重点实验室,超声医学工程重庆市市级重点实验室,重庆400016

出　　处：《压电与声光》2012年第5期806-810,共5页Piezoelectrics & Acoustooptics

基　　金：国家重点基础研究发展计划("九七三"计划)基金资助项目(2011CB707902)

摘　　要：提出了一种基于超声射频(RF)回波分布检测皮下脂肪厚度的方法。该方法首先根据浅表组织结构特征,找出射频回波信号中不同组织间界面的分布,然后采用脉冲反射法测量各层组织厚度,并将结果与B型超声诊断仪和直尺对比,最后设定阈值对射频回波进行峰值检测。实验结果证实了利用射频(RF)回波分布测量皮下脂肪厚度的可行性。A new method for subcutaneous fat thickness detection based on ultrasound RF echo distribution is presented.Firstly,this method analysis superficial tissue structure characteristics,and find out the different signal features of the tissue from the RF echo signal.Secondly,the thickness of each tissue layer is detected by pulse-echo method.Then the results are compared with B-mode ultrasonography and straightedge.Finally,the threshold is set for peak detection of RF echo signals.The results of experiments indicate the feasibility of detecting the subcutaneous fat thickness by ultrasound RF echo signals.

关 键 词：超声波 脉冲反射法 射频信号 皮下脂肪厚度 

分 类 号：O426.3[理学—声学]