A new coaxial TEM radiofrequency/microwave applicator for non-invasive deep-body hyperthermia.
A new coaxial TEM radiofrequency/microwave applicator for non-invasive deep-body hyperthermia.
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一种用于无创深部热疗的新型同轴 TEM 射频/微波治疗器。
DOI：
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发表时间：
1983
期刊：
影响因子：
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通讯作者：
J. Lagendijk
中科院分区：
文献类型：
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作者：
J. Lagendijk
目前，人们正在努力开发非侵入式加热系统，以产生受控的局部或区域深部体温过高。电磁干扰技术（10-80 MHz）与几个单独的施源器或多个施源器可以产生深部发热。我们设计了一种同轴频率无关的TEM射频/微波辐射源。该施加器可以在主体中心产生理论上最佳的干涉最大值。施用器构造非常简单并且便宜。为了测试的设计与设备可用，一个规模的TEM施加器的原型已经开发。原型直径为20厘米，工作频率为434 MHz。施用器已在几种体模材料上进行了测试。测量的吸收功率分布与计算的理论分布吻合得很好。10-80 MHz TEM深体辐射源的吸收功率分布的理论计算是非常令人鼓舞的。
At the moment great efforts are being made to develop non-invasive heating systems which produce controlled local or regional deep-body hyperthermia. Electromagnetic interference techniques (10-80 MHz) with several separated applicators or with multiple applicators can produce deep-body heating. In our institute a coaxial frequency-independent TEM radiofrequency/microwave applicator has been designed. This applicator can produce a theoretically optimal interference maximum in the centre of the body. The applicator is very simple to construct and inexpensive. To test the design with the equipment available, a scaled prototype of the TEM applicator has been developed. The prototype has a diameter of 20 cm and operates at 434 MHz. The applicator has been tested on several phantom materials. The measured absorbed power distributions are in good agreement with the calculated theoretical distributions. The theoretical calculations of the absorbed power distributions of a 10-80 MHz TEM deep-body applicator are very encouraging.