Non-invasive microwave multifrequency radiometry used in microwave hyperthermia for bidimensional reconstruction of temperature patterns.
Non-invasive microwave multifrequency radiometry used in microwave hyperthermia for bidimensional reconstruction of temperature patterns.
复制标题
非侵入性微波多频辐射测量用于微波热疗，用于温度模式的二维重建。
DOI：
10.3109/02656739309005041
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
Y. Moschetto
中科院分区：
文献类型：
--
作者：
L. Dubois;J. Pribetich;J. Fabre;M. Chivé;Y. Moschetto
自 1984 年以来，微波辐射测量法一直用于浅表肿瘤治疗热疗期间的无创温度测量，已证明其温度控制的有效性。根据两个频率范围（大约 1 和 3 GHz）的辐射温度测量和热疗过程中实现的表面（或皮肤）温度测量，已经开发并实施了一种获取二维热分布的数值方法。该方法基于生物热方程的热模拟、介质中吸收的微波功率计算（考虑施放器的辐射图）以及辐射温度的计算。根据这些实验测量（辐射和表面温度、加热功率、介电和热特性），已经开发出一个程序来确定热疗期间温度的二维分布，并在临床治疗期间和之后进行测试和使用。
Microwave radiometry, used routinely since 1984 for non-invasive temperature measurements during hyperthermia sessions for superficial tumours treatment has proven its efficiency for temperature control. From radiometric temperature measurements in two frequency ranges (around 1 and 3 GHz) and superficial (or cutaneous) temperature measurements achieved during hyperthermia sessions, a numerical method to obtain the two-dimensional thermal profile has been developed and implemented. This method is based on hyperthermia simulation from the bioheat equation, the absorbed microwave power calculation in the medium taking into account the radiative diagram of the applicator, and the calculation of radiometric temperatures. From these experimental measurements (radiometric and superficial temperatures, heating power, dielectric and thermal characteristics), a program to determine the bidimensional distribution of temperature during the hyperthermia session has been developed, tested and used during and after clinical treatments.