Aberrant Heating: A Problem in Regional Hyperthermia

Aberrant Heating: A Problem in Regional Hyperthermia
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异常加热:局部高热的一个问题

DOI:
10.1109/tbme.1986.325796
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发表时间:
1986
影响因子:
4.6
通讯作者:
R. L. Levin
R. L. Levin
中科院分区:
工程技术2区
文献类型:
--
作者:
M. Hagmann;R. L. Levin

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一个180细胞块模型的人已被用来计算模式的能量沉积时,射频施加器用于治疗癌症的热疗。当腹部暴露在平行于身体长度的极化下,频率从10到60 MHz,大约60- 70%的总能量沉积在腹部外部。在100和500 MHz之间发生的几次谐振中,这一比例增加到90%。在手臂、颈部、胸部和大腿的局部能量沉积率通常超过腹部。这种异常加热的模式取决于手臂和腿的位置。大腿或上臂治疗时的异常发热似乎比腹部治疗时的异常发热要不那么明显。
A 180 cell block model of man has been used to compute the pattern of energy deposition when radio-frequency applicators are used for treatment of cancer by hyperthermia. When the abdomen is exposed with polarization parallel to the length of the body at frequencies from 10 to 60 MHz, approximately 60-70 percent of the total energy is deposited outside of the abdomen. This fraction is increased to as much as 90 percent at several resonances which occur between 100 and 500 MHz. The local rates of energy deposition in the arms, neck, chest, and thighs often exceed that in the abdomen. The pattern of this aberrant heating is dependent upon the positions of the arms and legs. Aberrant heating appears to be much less pronounced for treatment of the thigh or upper arm than it is for treatment of the abdomen.
DOI: 10.1118/1.595128
发表时间: 1982
期刊: Medical physics
影响因子: 3.8
作者:
Strohbehn,JW
通讯作者: Strohbehn,JW