Satoh T, Stauffer P R, Fike J R
Dept. of Neurological Surgery, Okayama Univ. Med., School.
Gan No Rinsho. 1988 Sep;34(11):1544-9.
Implantable microwave antennas for interstitial hyperthermia have been constructed by using a fine wire helical coil extension of the coax feedline inner conductor. The effects of the variable coil length the winding density, and the antenna insertion depth in the tissue on the heating patterns from a single antenna were characterized in phantom models. Results indicated that the helical coil microwave antenna provided localized heat at depth near the antenna tip, and the heating patterns were easily modified by minor changes in the coil length, winding density, and altering the separation gap. The characteristics of the helical coil microwave antenna may increase its potential application to cases of interstitial hyperthermia.
用于组织间热疗的植入式微波天线是通过使用同轴馈线内导体的细线螺旋线圈延伸部分构建而成的。在体模模型中，对可变线圈长度、绕组密度以及天线在组织中的插入深度对单个天线加热模式的影响进行了表征。结果表明，螺旋线圈微波天线在天线尖端附近的深度处提供局部加热，并且通过线圈长度、绕组密度的微小变化以及改变间隔间隙，加热模式很容易被改变。螺旋线圈微波天线的特性可能会增加其在组织间热疗病例中的潜在应用。
