基于MATLAB的超声射频信号成像重建设计  

Reconstruction Design of Ultrasonic RF Signal Based on MATLAB

作　　者：严郁[1] 朱伟[1] 竺明月 蔡晓巍[1] 蔡润秋 YAN Yu;ZHU Wei;ZHU Mingyue;CAI Xiaowei;CAI Runqiu(Affliated Hospital of Nanjing University of TCM（Jiangsu Province Hospital of TCM）,Nanjing Jiangsu 210029,China;School of Biomedical Engineering,Nanjing Medical University,Nanjing Jiangsu 210029,China)

机构地区：[1]南京中医药大学附属医院(江苏省中医院),江苏南京210029 [2]南京医科大学生物医学工程系,江苏南京210029

出　　处：《中国医疗设备》2018年第8期77-79,99,共4页China Medical Devices

基　　金：江苏省"六大人才高峰"项目(WSN-058)

摘　　要：目的对超声射频(Radio-Frequency,RF)信号实现超声B模式成像重建,供后续辅助诊断研究使用。方法以一帧RF数据作为研究对象,使用MATLAB将从VINNO 70采集到的RF数据经过低频滤波、动态正交解调、带通滤波和下采样、动态显示范围压缩、扫描显示成像等步骤实现超声RF数据成像重建。结果成功实现从RF信号到超声B模式成像重建。结论超声B模式成像成功重建对在病灶特征信号特征值提取与分析等方面具有重要意义。Objective To achieve image reconstruction from the ultrasound radio-frequency （RF） signal to the ultrasonic B mode for the subsequent follow-up diagnostic studies. Methods Taking a frame of RF data as the research object, the RF data from VINNO 70 was reconstructed by low frequency fltering, dynamic quadrature demodulation, bandpass fltering and downsampling, dynamic display range compression and scanning display imaging using MATLAB. Results Image was reconstructed successfully from the ultrasound RF signal to the ultrasonic B mode. Conclusion The successful reconstruction of ultrasound B mode is of great signifcance in the extraction and analysis of the lesion characteristic signal eigenvalue.

关 键 词：MATLAB 超声射频 成像重建 感兴趣区 

分 类 号：R445.1[医药卫生—影像医学与核医学]