Numerical study of heat transfer and blood flow in two-layered porous liver tissue during microwave ablation process using single and double slot antenna

Rattanadecho, Phadungsak; Keangin, P.

doi:10.1016/j.ijheatmasstransfer.2012.10.043

Cited by 110 publications

(108 citation statements)

References 38 publications

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“…Moreover, the MATLAB environment has been used to present the simulation results. What is interesting, the Comsol's model is well known in the scientific world and it has been validated with a large number of numerical experiments and measurements [6,9]. However, it should be pointed that the multi-frequency analysis of the microwave antenna with different active slot configurations presented in this paper does not have equivalents in similar papers.…”

Section: Model Definition and Basic Equationsmentioning

confidence: 91%

“…Described coaxial antenna is composed of such elements as central conductor, dielectric, outer conductor and a plastic catheter that protect the inner elements. Antenna dimensions examined in this paper are the same as in [9,10]. What is more, the microwave needle applicator has three air slots of equal length The main simplifying assumption in presented simulation is that the human tissue and the microwave antenna are considered as uniform, linear and isotropic media.…”

Section: Model Definition and Basic Equationsmentioning

confidence: 99%

“…Detailed derivation of the basic equations and specific description of the initial-boundary conditions on the presented model may be found in similar works [7,[9][10].…”

Section: Model Definition and Basic Equationsmentioning

confidence: 99%

“…The dielectric parameters of the antenna elements have been taken from [9,10]. The electro-thermal parameters of tissues have been retrieved from the IT'IS foundation materials database [19].…”

Section: Model Definition and Basic Equationsmentioning

confidence: 99%

“…Antennas fed with coaxial cable are very popular in thermal therapy because of their simple construction, small dimensions and low costs of production [5]. Until now, the coaxial-slot antennas have been described in many scientific and medical papers, but most of them have included only one [6,7,24] or two air gaps [8,9]. It should be noted that the first publication, where the microwave heating using a new triple-slot coaxial antenna has been proposed, was published in 2014 [10].…”

Section: Introductionmentioning

confidence: 99%

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Multi–Frequency Analysis For Interstitial Microwave Hyperthermia Using Multi–Slot Coaxial Antenna

Gas

2015

Journal of Electrical Engineering

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The presented paper shows a new concept of multi-slot coaxial antenna working at different frequencies to predict the best solution for interstitial microwave hyperthermia treatment. The described method concerns a microwave heating of unhealthy cells using a thin microwave antenna located in the human tissue. Therefore, the coupled wave equation in a sinusoidal steady-state and the transient bioheat equation under an axial symmetrical model are considered. The 4-ColeCole approximation has been used to compute the complex relative permittivity of the human tissues at different antenna operating frequencies. At the stage of numerical simulation the finite element method (FEM) is used. Special attention has been paid to estimate the optimal antenna parameters for thermal therapy for three microwave frequencies mainly used in medical practice and make comparison of the obtained results in the case of single-, double-and triple-slot antennas.

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Section: Model Definition and Basic Equationsmentioning

confidence: 91%

Section: Model Definition and Basic Equationsmentioning

confidence: 99%

“…Detailed derivation of the basic equations and specific description of the initial-boundary conditions on the presented model may be found in similar works [7,[9][10].…”

Section: Model Definition and Basic Equationsmentioning

confidence: 99%

Section: Model Definition and Basic Equationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Multi–Frequency Analysis For Interstitial Microwave Hyperthermia Using Multi–Slot Coaxial Antenna

Gas

2015

Journal of Electrical Engineering

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Minimally Invasive Microwave Ablation Antennas

Luyen¹,

Mohtashami²,

Sawicki³

et al. 2021

Antenna and Sensor Technologies in Modern Medical Applications

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A vector finite element approach to temperature dependent parameters of microwave ablation for liver cancer

Mariappan

2022

Numer Methods Biomed Eng

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Microwave ablation (MWA) is a minimally invasive treatment for cancer that uses electromagnetic waves to kill the tumor cells without significantly damaging the surrounding healthy cells. A three‐state cell death model calculates the thermal damage around the Hepatocellular carcinoma (HCC) tumor in the liver tissue. The temperature profile is simulated for a single‐slot co‐axial antenna with a 1 mm air slot located near the tip of the antenna to produce an adequate amount of heat. The aims of this study are (1) to use the vector/edge finite element method (VFEM) to simulate the electromagnetic wave propagation to obtain the specific absorption rate, which is an input for the bio‐heat equation that predicts the heat distribution in the liver tissue during MWA treatment, and (2) to compare the computational costs of VFEM and the finite element method (FEM) when different types of input powers and dielectric properties are used in the wave propagation equation. This study claims that the accuracy level increases marginally with less computation cost while using VFEM for temperature‐dependent wave propagation equation.

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Numerical study of heat transfer and blood flow in two-layered porous liver tissue during microwave ablation process using single and double slot antenna

Cited by 110 publications

References 38 publications

Multi–Frequency Analysis For Interstitial Microwave Hyperthermia Using Multi–Slot Coaxial Antenna

Multi–Frequency Analysis For Interstitial Microwave Hyperthermia Using Multi–Slot Coaxial Antenna

Minimally Invasive Microwave Ablation Antennas

A vector finite element approach to temperature dependent parameters of microwave ablation for liver cancer

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