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    Item type:Publication,
    Thermal ablation for cancer treatment by using microwave energy in a simple lung model
    (2014-01-20)
    Sanpanich, A.
    ;
    Khongkhanon, C.
    ;
    Kajornpredanon, Y.
    ;
    Thanangkul, S.
    ;
    Apaiwong, C.
    Lung cancer or pulmonary cancer is one of a dangerous cancer threatening human life since a long time ago. Even though, a conventional surgery is widely accepted as a gold standard for this cancer treatment, however a new medical maneuver still be investigated to perform with this disease. In this paper, we trail a simulation of thermal ablation by using microwave energy at 2.45GHz, 30 Watts for 10 seconds with an opened-ring coaxial applicator in a simple lung tissue model. An air tracheal also placed in this model in order to compare for a thermal distribution. Although, this model is quite differing from a porous material, but our simulation results of temperature distribution and destructive area at 60 □C guide us some useful information for a real ex vivo with swine tissue in the near future work.
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    Item type:Publication,
    Bone drilling by using microwave ablation; FEM investigation
    (2013-12-01)
    Phairoh, C.
    ;
    Sanpanich, A.
    ;
    Kajornpredanon, Y.
    ;
    Thanangkul, S.
    ;
    Apaiwong, C.
    Bone drilling by using heat energy from microwave is a promising research issue and has been proposed by some researcher. However, there are still some interesting topics remaining to be investigated especially in term of a temperature variation during burning or drilling process and a prediction of an extreme burning size or drilling diameter. In this paper, we propose an FEM investigation of bone drilling by using microwave thermal ablation emphasizing on a temperature distribution pattern and temperature variation at a hot spot of a cutting-end antenna. Bone phantom was modeled as two solid layers as cortical and bone marrow part. Simulation was implemented in three different applicator positions in bone model as a top surface, middle and near marrow. The obtained simulation results give us useful information to design more suitable and practicable applicator for heat pattern focusing in a compact bone tissue and also encourage us to validate with a bovine bone in near future. © 2013 IEEE.