915 MHZ MICROWAVE INTERSTITIAL HYPERTHERMIA .2. ARRAY OF PHASE-MONITORED ANTENNAS
915 MHZ MICROWAVE INTERSTITIAL HYPERTHERMIA .2. ARRAY OF PHASE-MONITORED ANTENNAS
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DOI：
10.3109/02656739309005043
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发表时间：
1993-05-01
影响因子：
3.1
通讯作者：
CHIVE, M
中科院分区：
文献类型：
--
作者：
CAMART, JC;DUBOIS, L;CHIVE, M
为了通过微波间质热疗来加热肿瘤的整个体积，有必要使用天线阵列。天线建模和二维生物热传递方程的数值解允许确定加热期间的温度演变。计算采取四个天线馈入的相位和理论，然后证明了凝胶和病人的实验。结果上的横截面加热模式和它们的时间演变。当通过与其它电流异相的馈电电流对一个天线馈电时，计算温度分布。的相位差值进行了优化，然后证明，加热体积增加，通过连续馈送每个天线与异相电流。对一个接一个地向每个天线馈电所花费的时间进行了优化。
In order to heat the whole volume of a tumour by microwave interstitial hyperthermia it is necessary to use an antenna array. The antenna modelization and the numerical solution of the bidimensional bioheat transfer equation allow determination of temperature evolution during a heating session. The calculations are taken for four antennas fed in phase and the theory is then proven by experiments on gel and on patients. Results are presented on cross-section heating patterns and their time evolution. Temperature distribution is calculated when feeding one antenna by a feeding current out of phase with the other currents. The phase difference value is optimized and it is then demonstrated that the heated volume is increased by successively feeding each antenna with an out-of-phase current. The time taken to feed each antenna one after the other is optimized.