Slot antenna for microwave ablation

A coaxial slot antenna with frequency of 433 MHz for microwave …

Abstract—We report a novel coaxial antenna for hepatic microwave ablation. This device uses a ﬂoating sleeve, that is, a metal conductor electrically4.45-GHz microwave generator through a 1 m long ﬂexible coaxial cable. from the center of the antenna slot at z = 23 mm to liver tissue right side... Antenna design for microwave hepatic ablation using… Background: An axisymmetric finite element method (FEM) model was employed to demonstrate important techniques used in the design of antennas for hepatic microwave ablation (MWA). To effectively treat deep-seated hepatic tumors, these antennas should produce a highly localized... A floating sleeve antenna yields localized hepatic … Index Terms— Ablation, coaxial aperture antennas, ﬁnite ele-ment methods, ﬂoating sleeve, microwave heating. I. I NTRODUCTION M ICROWAVEAs long as the sleeve is half a wave-length (adjusted for the presence of Te ﬂ on) in length and is notcovering the antenna slot, it seems able to... Microwave Ablation and

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.

Development and Analysis of Coaxial Slot Antenna in Comparision ... Coaxial Dipole Antenna for Interstitial Microwave Ablation ... Key-Words: - Microwave ablation (MWA), tumor, Finite Element Method (FEM), Coaxial slot antenna,. Finite Element Analysis of Single Slot Antenna for Microwave Tumor ...

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 …

A thin antenna, which emits microwaves, is then inserted into the tumor. The probe produces intense heat that ablates (destroys) tumor tissue, often within 10 minutes. Microwave ablation has a number advantages when compared to traditional RFA, a standard method for ablating liver tumors, These include: Finite Element Analysis of Single Slot Antenna for ... Finite Element Analysis Of Single Slot Antenna For Microwave Tumor Ablation www.iosrjournals.org 58 | Page for an input power of P av deduced from the time-average power flow. The antenna radiates into the tissue where a damped wave propagates. A Dual-Slot Microwave Antenna for More Spherical Ablation ... • The dual-slot microwave antenna can create a more spherical ablation zone than the monopole antenna can in ex vivo and in vivo liver tissue. • Substantial water vapor is formed and can be visualized with intraprocedural CT imaging to characterize ablation zone growth during microwave heating. A Hybrid Slot/Monopole Antenna With Directional Heating ... We present a new coax-fed interstitial antenna for generating directional heating patterns during microwave ablation. The antenna comprises a base-fed mono A Hybrid Slot/Monopole Antenna With Directional Heating Patterns for Microwave Ablation - IEEE Journals & Magazine

MICROWAVE ABLATION ANTENNA SYSTEM WITH SLOT BALUN - Wisconsin ...

3D FINITE ELEMENT ANALYSIS FOR NON- ASYMMETRY STRUCTURE ANTENNA FOR ... The results illustrate that the coaxial-slot non-asymmetry structure antenna can be used in microwave ablation for destruction of the cancer cell in the area closed to the very fragile tissue or blood vessel. International Communications in Heat and Mass Transfer An analysis of heat transfer in liver tissue during microwave ablation using single and double slot antenna☆ P. Keangin, P. Rattanadecho⁎, T. Wessapan A Hybrid Slot/Monopole Antenna With Directional Heating Patterns For ...

RESULTS The dual slot antenna with sleeve produces localised microwave energy better than the monopole antenna in all ablated tissues using simulation andPURPOSE To study the efficiency of a dual slot antenna with a floating metallic sleeve on the ablation of different ex vivo bovine tissues.

Download Design and Analysis of Two Slot Antenna for Microwave Ablation book pdf free download link or read online here in PDF. Read online Design and Analysis of Two Slot Antenna for Microwave Ablation book pdf free download link book now. All books are in clear copy here, and all files are secure so don't worry about it. A Dual-Slot Microwave Antenna for More Spherical Ablation ... Microwave ablation zones were created by using dual-slot and monopole control antennas for 2, 5, and 10 minutes at 50 and 100 W in ex vivo bovine livers. Dual-slot and monopole antennas were then used to create ablation zones at 100 W for 5 minutes in in vivo porcine livers, which also underwent intraprocedural imaging.