For ablation of larger tumors, two to three microwave antenna needles can be used at the same time to produce maximum coagulation area. [ 43] Simultaneous use of two antenna needles could not be simply regarded as a linear superposition of … Microsoft Word - Hernández_Tonmj An antenna emits minimal injury to normal tissues [1]. By killing cancer cells microwave radiation into the tissue; this results in excitation and damaging proteins and structures within cells [2], hyper-and oscillation of polar molecules … Coaxial Slot Antenna Design for Microwave Hyperthermia using… A computer modeling of a double slot antenna for interstitial hyperthermia was designed using two different numerical methods, the Finite Element Method and a Finite-Difference Time-Domain.
MEASUREMENTS, ANTENNA DESIGN AND ADVANCED COMPUTER MODELING ...
A Floating Sleeve Antenna Yields Localized Hepatic Index Terms—Ablation, coaxial aperture antennas, nite ele-ment methods, oating sleeve, microwave heating.As long as the sleeve is half a wave-length (adjusted for the presence of Teon) in length and is not covering the antenna slot, it seems able to constrain the tail of the SAR pattern. Multiple antenna microwave ablation Multiple antenna microwave ablation: impact of non-parallel antenna insertion. by SOUVICK MUKHERJEE.Dual antenna ablation at 2.45 GHz for Dual Slot Antennas: Converging and Diverging Configurations. A coaxial-slot antenna for invasive microwave
A Novel Microwave Coaxial Slot Antenna for Liver Tumor Ablation Hulusi Açıkgöz*, İbrahim Türer *KTO Karatay University, Konya, Turkey *corresponding author, E-mail: hulusi.acikgoz@karatay.edu.tr Abstract This paper is on the effect of a T-ring shape structure to enhance the capability of a microwave coaxial slot antenna
For the first time, we report a novel design for a coaxial antenna with greatly increased possibility of conformal treatment, a coaxial multi-slot antenna with multiple, preoperative, adjustable, slots for conformal microwave ablation. Theoretical simulations revealed that our coaxial multi-slot antenna could greatly decrease over-treatment compared with the conventional coaxial-slot antenna. Additionally, the coaxial-slot antenna with ten slots generates the smallest over-treatment region ...
The technique for thermal ablation in the lung by using radiofrequency ablation was first described in 1995 for use in animal lung tumor models and then in 2000 in humans. [1-2] Microwave ablation has emerged as a newer ablation modality and an addition to the arsenal of minimally invasive cancer care.
Theoretical evaluation of the treatment effectiveness of a novel ... For the first time, we report a novel design for a coaxial antenna with greatly increased possibility of conformal treatment, a coaxial multi-slot antenna with multiple, preoperative, adjustable, slots for conformal microwave ablation. Theoretical simulations revealed that our coaxial multi-slot antenna could greatly decrease over-treatment compared with the conventional coaxial-slot antenna. Additionally, the coaxial-slot antenna with ten slots generates the smallest over-treatment region ... MEASUREMENTS, ANTENNA DESIGN AND ADVANCED COMPUTER MODELING FOR ... Microwave hepatic ablation is a new promising technology to treat both primary and metastatic tumors of the liver by delivering microwave power with an antenna to heat and destroy the tumors.
Large and round ablation zones with microwave ablation: A ...
Microwave Ablation Antenna Design - aibolita.com FIGURE 9.14 Schematic cross sections of five antenna designs for microwave ablation. From top to bottom: slot, monopole, dipole, triaxial, and choked slot. Metallic components are represented in dark gray, dielectric insulators in light gray. 1996, Hurter 1991, Ahn 2005). A numerical investigation of microwave ablation on porous ... The understanding of heat transport in biological tissues is important for enhanced insight on the physiological mechanisms and thermoregulatory mechanisms. This article presents a numerical simulation of microwave (MW) ablation using a single-slot MW antenna on two layers of porous liver tissue. Open Access Coaxial Slot Antenna Design for Microwave ... 2 The Open Nanomedicine Journal, 2011, 3, 2-9 1875-9335/11 2011 Bentham Open Open Access Coaxial Slot Antenna Design for Microwave Hyperthermia using Finite-Difference Time-Domain and Finite Element Method
A Novel Microwave Coaxial Slot Antenna for Liver Tumor … P. Prakash, Theoretical Modeling for Hepatic Microwave Ablation, The Open Biomedical Engineering Journal, Vol. 4, 27-38, 2010. K. Saito, Y. Hayashi, H. Yoshimura, K. Ito, Heating characteristics of array applicator composed of two coaxial- slot antennas for microwave coagulation therapy, IEEE... A Novel Microwave Coaxial Slot Antenna for Liver Tumor … Abstract: This paper is on the effect of a T-ring shape structure to enhance the capability of a microwave coaxial slot antenna (MCA) in the treatment of liver cancer. The MCA is composed of an interstitial coaxial line that is enclosed in a catheter.