Seebass M, Beck R, Gellermann J, Nadobny J, Wust P
Konrad-Zuse-Zentrum für Informationstechnik Berlin, Berlin-Dahlem, Federal Republic of Germany.
Int J Hyperthermia. 2001 Jul-Aug;17(4):321-36. doi: 10.1080/02656730110049529.
This paper investigates the effects of the three-dimensional arrangement of antennae and frequency on temperature distributions that can be achieved in regional hyperthermia using an electromagnetic phased array. It compares the results of power-based and temperature-based optimization. Thus, one is able to explain the discrepancies between previous studies favouring more antenna rings on the one hand and more antennae per ring on the other hand. The sensitivity of the results is analysed with respect to changes in amplitudes and phases, as well as patient position. This analysis can be used for different purposes. First, it provides additional criteria for selecting the optimal frequency. Secondly, it can be used for specifying the required phase and amplitude accuracy for a real phased array system. Furthermore, it may serve as a basis for technological developments in order to reduce both types of sensitivities described above.
本文研究了天线的三维排列和频率对使用电磁相控阵进行区域热疗时所能实现的温度分布的影响。比较了基于功率和基于温度的优化结果。因此，能够解释以往研究中一方面倾向于更多天线环而另一方面倾向于每个环更多天线之间的差异。针对幅度和相位的变化以及患者位置，分析了结果的敏感性。该分析可用于不同目的。首先，它为选择最佳频率提供了额外标准。其次，它可用于确定实际相控阵系统所需的相位和幅度精度。此外，它可为技术发展提供基础，以降低上述两种敏感性。
