Phasukkit, Pattarapong
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Phasukkit, Pattarapong
Alternative Name
Phasukkit, P.
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Email
pattarapong.ph@kmitl.ac.th
6 results
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Item type:Publication, Analysis of heat sink effect in hepatic cancer treatment near arterial for microwave ablation by using finite element method(2012-12-01); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Optimal monitoring point for temperature and power control in microwave ablation system by using FEM(2012-12-01); Sanpanich, A.This study presents an optimal location of monitoring point for using by PID system to control temperature and output power of hepatic cancer microwave ablation system. We investigated a relation between output power and treatment time in hepatic ablation. A simple simulation model was adapted from COMSOL FEM solver. As a preliminary, monitoring point was supposed to place at 0.5 centimeter besides ablation probe. The simulation results shown that temperature at this monitoring point is linearly related to output power and treatment time. ©2012 IEEE. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, 3D finite element analysis for varicose vein therapy by using microwave ablation(2012-12-01); ; ; Sanpanich, A.This paper presents three-dimensional finite element method for analyze a varicose vein microwave ablation. Varicose vein can contract by using heat from microwave ablation. Because of varicose vein patients have leg pain from long time standing, and do a lot of activities. Symptoms have influenced the daily life of patients. We study method for varicose vein therapy by using microwave ablation. Because of this method is easy to use for varicose vein therapy. In this research work, we propose simulation varicose vein that varicose vein is inserted with antenna into blood vessel. Simulation method delivers microwave to antenna inserted in varicose vein. For this reason, varicose vein is contract. Finite element analysis can apply in treatment planning and show temperature distribution and specific absorption rate (SAR) distribution for contract of varicose vein characteristic by using microwave therapy. And the doctor can be use the data for treat in future. ©2012 IEEE. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Optimal antenna slot design for hepatocellular carcinoma microwave ablation using multi-objective fuzzy decision making(2020-10-01); ; Chayakulkheeree, KeeratiThis paper presents the optimal antenna slot position and sizing (OASPS), for microwave (MW) hepatocellular carcinoma (HCC) treatment, using multi-objective fuzzy decision making (MOFDM). In the optimal design problem formulation, the multi-objective for, (1) achievement for a near-spherical zone for ablation defined by axial ratio (AR), (2) the minimum reflection coefficient (S11), and (3) maximum volume of destroying (VD), are desired. The finite element method (FEM) is used for MW distribution simulation for coordination analysis with the proposed MOFDM based OASPS. The investigation on the design results shown that the temperature distribution of the proposed MOFDM for OASPS is in the more controllable shape comparing to the existing design, due to the sharp beam of temperature distribution to the target at the front side of slot with the less temperature distribution at the rare side of slot. The results also show that the proposed MOFDM for OASPS for OASPS design is easier to manage with the less effect to the rare side of the slot. Moreover, the proposed MOFDM for OASPS resulted in the temperature distribution shape closer to round shape than the existing design. The MOFDM for OASPS is tested on designing of the antenna build up from the coaxial cable. The coaxial cable used is Semi-rigid 141 (RG402 M17/130-RG402 Copper Jacket) including Inner conductor, Dielectric, and Outer conductor. In the simulation, the slot distance from conductor end (Lts), representing the slot position, is varied as 2.3mm, 3.3mm, 4.3mm, 5.3mm, 6.3mm, 7.3mm, and 8.3mm. Meanwhile, the slot size (Wd), is varied as 1mm, 2mm, 3mm, 4mm, 5mm, and 6mm. The input power (Pi) used is 50 W with the duration of 300 seconds. The comparison of obtained by different L<inf>ts</inf> and W<inf>d</inf>, is investigated. The simulation results show that the proposed MOFDM based OASPS can efficiently and effectively provide the near-spherical zone of ablation result with simultaneously trade-off between S11 minimization and VD maximization. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Investigation of Thermal Distribution of Balloon Antenna MWA for Urethra Stricture Treatment(2019-01-10); In this paper presented a studying temperature distribution of microwave balloon antenna. Design and analysis by using Comsol Multiphysics program. in vitro experiment with porcine urethral. Validation accuracy out of temperature by use infrared thermometer camera. Also, localized ablation zone by using the colonoscope for confirming the result after an experiment. The results of prevention burn or bleeding and sensitive structure after treatment and all results. Confirm technique for expending urethra stricture by using microwave balloon. In this technique, a research can to treat urethral stricture and other organ in the future. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, 3D finite element analysis for coronary artery disease therapy by using microwave ablation(2012-12-01); ; Sanpanich, A.This paper presents three-dimensions finite element analysis of 2.45 GHz microwave ablation for plagued coronary artery treatment. Any narrowing or blockage of the coronary arteries reduces blood supply to the heart tissue, following by reducing an amount of delivered oxygen and nutrients. This phenomenon inhibits a normal function of the heart muscle. In this research, we propose an application of finite element method to analyze and simulate a microwave ablation process on the blockage or plagued coronary artery. The investigation emphasizes on a reduction of plague or fat size that fixed around a coronary wall when heating by microwave thermal ablation. The simulation results of 3D analysis show the characteristic of temperature distribution in the coronary artery and a destructive area of plaque. 10 Watts of emission power at temperature 95°C is used as a preliminary value. The simulation found that 3.21 mm<sup>3</sup> of plaque size can be destroyed with 10 s. These obtained results usefully guide us to develop and more investigate on a further system in the future. ©2012 IEEE.