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Temperature dependence of speed of sound and attenuation of porcine left ventricular myocardium

机译:猪左心室心肌的声音速度和衰减速度的温度依赖性

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摘要

Highlights?Temperature-dependency of porcine myocardium acoustic parameters was investigated.?Slope of phase velocity with temperature was measured as 1.10±0.04m/s/°C.?Slope of attenuation was estimated as ?0.11±0.04dB/cm/°C at 10MHz.?Attenuation power law coefficient was estimated asn=1.434±0.025.?Speed of sound dispersion accurately predicted from Kramers-Kronig relations.AbstractThe temperature dependence of soft tissue acoustic properties is relevant for monitoring tissue hyperthermia. In the current work, the propagation speed and attenuation of healthy porcine left ventricular myocardium (N=5) was investigated in a frequency range relevant for clinical diagnostic imaging, i.e. 2.5–13.0MHz. Each tissue sample was held in a water bath at a temperatureT=25°C,
机译:<![cdata [ 亮点 研究了猪心肌学参数的温度依赖性。 测量相速度的相速度的斜率为1.10±0.04m / s /°C。 < CE:PARA ID =“P0015”视图=“全部”>衰减斜率估计为10MHz的0.11±0.04dB / cm /°C. 衰减电源法系数估计为 n = 1.434±0.025。 声音分散的速度从kramers-kronig关系预测。 < / ce:简单 - 段> 摘要 软组织声学的温度依赖性性质与监测组织热疗相关。在当前的工作中,在对临床诊断成像的频率范围内研究了健康猪左心室心肌(n = 5)的传播速度和衰减,即2.5-13.0MHz。将每个组织样品在温度下保持在水浴中 t = 25°C,

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  • 来源
    《Ultrasonics》 |2018年第2018期|共6页
  • 作者单位

    Cardiovascular Imaging and Dynamics Department of Cardiovascular Sciences Faculty of Medicine University of Leuven;

    Cardiovascular Imaging and Dynamics Department of Cardiovascular Sciences Faculty of Medicine University of Leuven;

    Wave Propagation and Signal Processing Department of Physics and Astronomy Faculty of Science University of Leuven;

    Wave Propagation and Signal Processing Department of Physics and Astronomy Faculty of Science University of Leuven;

    Faculty of Information Technology and Bionics Pázmány Péter Catholic University;

    Cardiovascular Imaging and Dynamics Department of Cardiovascular Sciences Faculty of Medicine University of Leuven;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 超声学;
  • 关键词

    Phase velocity; Tissue characterization; Temperature dependency; Porcine myocardium;

    机译:阶段速度;组织表征;温度依赖性;猪心肌;

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