超声多普勒信号最大频率曲线的特征提取

Feature Extraction of Maximum Frequency Waveforms from Doppler Ultrasound Signals

从超声多普勒血流信号的声谱图提取最大频率曲线 ,利用小波变换对该曲线进行多尺度分析 ,并提取新参数。临床试用表明

Maximum frequency waveforms extracted from spectrograms of doppler ultrasound signals were ana- lyzed using a multi- scale wavelet transform. A novel index was obtained. The results of clinical experiments showed that the novel index has a better performance in cerebral vascular disease diagnosis than that of the tra- ditional methods.