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- W3197541038 abstract "The temperature dependence of relative permittivity and conductivity of ex-vivo pig liver, lung and heart at 2 450 MHz was studied. The relative permittivity and conductivity of three kinds of biological tissues were measured by the open-end coaxial line method. The dielectric model was fitted according to the principle of least square method. The results showed that the relative permittivity and conductivity of pig liver, pig lung and pig heart decreased with the increase of tissue temperature from 20 to 80 ℃. The relative permittivity and conductivity models of pig liver, pig lung and pig heart were established to reflect the law of dielectric properties of biological tissue changing with temperature and provide a reference for the parameters setting of thermal ablation temperature field.研究 2 450 MHz 频率下，离体猪肝、猪肺和猪心的相对介电常数和电导率随温度的变化规律。采用开端同轴线法测量三种生物组织的相对介电常数和电导率，根据最小二乘法原理拟合介电模型，结果表明，随着组织温度从 20 ℃ 升高到 80 ℃，猪肝、猪肺和猪心的相对介电常数和电导率均随之降低。并据此建立了猪肝、猪肺和猪心的相对介电常数和电导率模型，以反映生物组织介电特性随温度变化的规律，为热消融温度场参数设置提供参考。." @default.
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- W3197541038 date "2021-08-25" @default.
- W3197541038 modified "2023-09-26" @default.
- W3197541038 title "[Experimental study on temperature dependence of dielectric properties of biological tissues at 2 450 MHz]." @default.
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- W3197541038 doi "https://doi.org/10.7507/1001-5515.202005027" @default.
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