期刊
2016 PROGRESS IN APPLIED ELECTRICAL ENGINEERING (PAEE)
卷 -, 期 -, 页码 -出版社
IEEE
DOI: 10.1109/PAEE.2016.7605118
关键词
radioferquwncy hiperthermia; electromagnetic fields; Pennes bioheat equation; Brown and Neel relaxation processes
In this article hyperthermia therapy of tumors by electromagnetic field in radio-frequency range is described. Electromagnetic fields are used to generate temperature distribution inside the tumor and in surrounding tissues. First equations allowing calculation of the magnetic field within human body in terms of magnetic vector potential A and under sinusoidal steady state are derived. Next Pennes bioheat equation in a human tissue under uniform material properties with respect to temperature T is solved. Heat generation is caused by Brown and Neel relaxation processes. Also power loss formula in ferrofluid is presented. At the and some numerical example is solved and influence of various particle parameters on generation power and temperature is discussed.
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