Transient Temperature Distribution inside Human Brain during Interstitial Microwave Hyperthermia
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چکیده
This study demonstrates computer simulation of human brain treated with interstitial microwave hyperthermia. A thin coaxial-slot antenna emitting microwaves is the heat source. For simplification, a 2D axisymmetric model is considered. The wave equation for TM wave case and the Pennes bioheat transfer equation for transient-state have been solved with the finite element method. The impact of the time variable on temperature distribution was discussed and the obtained simulation results were presented. Streszczenie. Niniejsza praca pokazuje symulację komputerową mózgu człowieka leczonego przy wykorzystaniu śródmiąższowej hipertermii mikrofalowej. Źródłem ciepła jest cienka współosiowa antena ze szczeliną powietrzną emitująca mikrofale. Równanie falowe dla przypadku fali TM oraz biologiczne równanie przewodnictwa cieplnego określone przez Pennesa dla stanu niestacjonarnego zostały rozwiązane za pomocą metody elementów skończonych. Został przedyskutowany wpływ zmiennej czasowej na rozkład temperatury i przedstawione wyniki symulacji. (Nieustalony rozkład temperatury wewnątrz mózgu człowieka w czasie śródmiąższowej hipertermii mikrofalowej)
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تاریخ انتشار 2013