DIELECTRIC-PROPERTIES OF LOW-WATER-CONTENT TISSUES
DIELECTRIC-PROPERTIES OF LOW-WATER-CONTENT TISSUES
复制标题
DOI：
10.1088/0031-9155/30/9/008
复制
发表时间：
1985-01-01
影响因子：
3.5
通讯作者：
FOSTER, KR
中科院分区：
文献类型：
--
作者：
SMITH, SR;FOSTER, KR
两个低含水量的组织，骨髓和脂肪组织的介电特性，从1 kHz到1 GHz的测量。从1 kHz到13 MHz，使用平行板电容器方法进行测量。从10 MHz到1 GHz，采用了使用开放式同轴传输线的反射系数技术。组织含水量范围为1至几乎70重量%。的介电性能相关以及由混合物理论预测的值。与以前的高含水量组织的结果比较表明，骨髓和脂肪组织含有较少的运动改变的水每单位干体积比以前研究的组织与较低的脂质分数。这些组织的高度结构异质性反映在数据的大分散性中，这是当前数据实际应用中应考虑的不确定性来源。
The dieletric properties of two low-water-content tissues, bone marrow and adipose tissue, were measure from 1 kHz to 1 GHz. From 1 kHz to 13 MHz, the measurements were performed using a parallel-plate capacitor method. From 10 MHz to 1 GHz, a reflection coefficient technique using an open-ended coaxial transmission line was employed. The tissue water contents ranged from 1 to almost 70% by weight. The dielectric properties correlate well with the values predicted by mixture theory. Comparison with previous results from high-water-content tissues suggests that bone marrow and adipose tissues contain less motionally altered water per unit dry volume than do the previously studied tissues with lower lipid fractions. The high degree of structural heterogeneity of these tissues was reflected in the large scatter of the data, a source of uncertainty that should be considered in practical applications of the present data.