De Leeuw A A, Lagendijk J J
University Hospital Utrecht, Department of Radiotherapy, The Netherlands.
Int J Hyperthermia. 1987 Sep-Oct;3(5):413-21. doi: 10.3109/02656738709140411.
The design of a clinical deep-body hyperthermia system based on the 'coaxial TEM' applicator is presented. The 'coaxial TEM' applicator produces a radiative circumferential RF field, and the adjustable aperture width of this applicator allows the optimization of field dimensions and penetration depth. A new type of open water bolus, in which the patient is almost freely floating, avoids physical stresses on the patient, provides an optimal coupling of the EM energy into the patient, and may limit aberrant heating. A convenient patient position is possible with this system and discomfort is expected to be minimal. Preliminary phantom experiments with the clinical applicator resulted in typical SAR distributions of a radiative circumferential field applicator with the central interference at maximum.
介绍了一种基于“同轴横电磁波”（coaxial TEM） applicator的临床深部热疗系统的设计。“同轴横电磁波” applicator产生一个辐射圆周射频场，该 applicator的可调孔径宽度允许优化场尺寸和穿透深度。一种新型的开放水垫，患者几乎可以自由漂浮，避免了对患者的物理压力，提供了电磁能量到患者体内的最佳耦合，并可能限制异常加热。使用该系统可以实现方便的患者体位，预计不适感最小。使用临床 applicator进行的初步体模实验得到了辐射圆周场 applicator的典型比吸收率（SAR）分布，中心干扰最大。
