| 基于"WD倒谱"法分析人体脾组织的超声散射微结构特征 |
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| 引用本文： | 他得安,刘镇清,陈启敏,闵一健.基于"WD倒谱"法分析人体脾组织的超声散射微结构特征[J].生物医学工程学杂志,2000,17(4):440-443. |
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| 作者姓名： | 他得安 刘镇清 陈启敏 闵一健 |
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| 作者单位： | 1. 同济大学,声学研究所,上海,200092
2. 陕西师范大学,应用声学研究所,西安,710062 |
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| 基金项目： | 国家自然科学基金资助项目!( 195 740 3 9) |
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| 摘 要： | 本文提出了一种对超声散射信号分析的新方法--“WD倒谱”法,并利用该方法对人体正常脾和脾增生组织的回波信号进行了分析,对软组织中散射子的平均间距进行了估计,结果表明：两种脾组织散射子的平均同距明显不同;“WD倒谱”能有效的反映软组织的微观结构特征,说明“WD倒谱”是软组织超声散射信号分析与软组织散射子平均间距定征的一种有效方法。
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| 关 键 词： | WD倒谱 脾组织 散射子平均间距 超声散射信号 |
Analysis of Ultrasonic Backscattering Microstructure Feature of Human Spleen Based on"WD Cepstrum" |
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| Ta Dean,Liu Zhenqing,Chen Qimin,Min Yijian.Analysis of Ultrasonic Backscattering Microstructure Feature of Human Spleen Based on"WD Cepstrum"[J].Journal of Biomedical Engineering,2000,17(4):440-443. |
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| Authors: | Ta Dean Liu Zhenqing Chen Qimin Min Yijian |
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| Institution: | Institute of Acoustics, Tongji University, Shanghai 200092. |
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| Abstract: | A new method "WD cepstrum" for analysing ultrasonic scattered signals based on wavelets decomposition before cepstrum has been developed and then applied to process the backscattered signals of normal and pathological human spleen in vitro. The mean scatterer spacing(MSS) has been estimated. The results show that the MSS data of the two tissues are quite different and "WD cepstrum" is more effective for reflecting the microstructure feature of tissue. The results also illustrate that "WD cepstrum" is an effective method for signal analysis of ultrasonic scattering and characterization of tissue scatterers. |
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| Keywords: | WD cepstrum Spleen tissue Mean scatterer spacing |
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