Accurate Electromagnetic Simulation of Near-field Performance of an X-band Array for Hyperthermia Therapy Applications PDF Download
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Author: Santosh Babu Modini
Publisher:
ISBN:
Category :
Languages : en
Pages : 104
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Book Description
This project will focus on the application of an advanced electromagnetic simulation software: 4nec2 for the near-field characterization of a 3-element X-band array of waveguide and horn antennas. Previous modeling efforts have shown a significant difference between simulated and measured data. The key effort in this project will be to minimize the difference between simulated and measured data by use of the 4nec2 software. The simulation will be carried out on both a 3-element array of open-ended waveguides and a 3-element array of circular horn antennas. The main application of these arrays is in microwave hyperthermia treatment of tumors by focused heating.
Author: Santosh Babu Modini
Publisher:
ISBN:
Category :
Languages : en
Pages : 104
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Book Description
This project will focus on the application of an advanced electromagnetic simulation software: 4nec2 for the near-field characterization of a 3-element X-band array of waveguide and horn antennas. Previous modeling efforts have shown a significant difference between simulated and measured data. The key effort in this project will be to minimize the difference between simulated and measured data by use of the 4nec2 software. The simulation will be carried out on both a 3-element array of open-ended waveguides and a 3-element array of circular horn antennas. The main application of these arrays is in microwave hyperthermia treatment of tumors by focused heating.
Author: Feroz Khan
Publisher:
ISBN:
Category :
Languages : en
Pages : 96
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Book Description
This project focuses on the study of 3-element array of open-ended waveguides and circular horn antenna operating in the X-band frequency range of 8-12GHz. The 3-element array consists of a center focusing element and two surrounding directing elements. The focusing element is adjusted such that it controls the focus of the array. Experimental studies have been performed in this project by using different array configurations and the measured results were compared with earlier simulation results obtained using the 4NEC2 antenna modeler and optimizer. The goal of our project is to achieve a closer match between simulated and measured near-field results, as compared to results obtained in prior projects. The eventual application of this study is for hyperthermia a treatment of cancer by focused microwave radiation on the affected area.
Author: Alan Jeffrey Fenn
Publisher: Artech House
ISBN: 1596933801
Category : Medical
Languages : en
Pages : 241
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Book Description
From electromagnetic field theory for tissue heating... to simulations of adaptive phased array thermotherapy for deep tumors of the torso... to coverage of arrays for tumors in the head, neck, breast, and chest wall, this timely resource offers you expert guidance in this emerging area.
Author: Edmond Balidemaj
Publisher:
ISBN: 9789402801651
Category :
Languages : en
Pages : 131
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Book Description
"Many randomized clinical studies have shown that the therapeutic effect of radiotherapy and chemotherapy is significantly enhanced when used in combination with hyperthermia (tumor heating in the range of 41-45 °C). To generate spatially focussed heating in the deep seated tumors (e.g. cervical, bladder, prostate tumors), RF phased antenna-array systems are used. Prior to treatment, electromagnetic simulation is employed to compute the optimal antenna settings, a procedure known as Hyperthermia Treatment Planning. The electromagnetic field interactions between the system and the patient are governed by the electric tissue properties. Therefore, an accurate patient dielectric model is essential for optimal hyperthermia. This research was initiated to acquire electric tissue properties in living conditions (in vivo) by Magnetic Resonance Imaging (MRI) because the values reported in the literature show large variations for normal tissue. Furthermore, the tumor electric properties are scarcely reported in the literature. In this thesis electric tissue properties of 20 cervical cancer patients were acquired by an MR based method known as the Electric Properties Tomography (EPT). The results showed that in vivo values are higher than commonly used (Ch.3&4). The impact of the acquired electric properties on hyperthermia were investigated in five patient models, showing a significant impact in particular cases (Ch.5). Furthermore, a novel method is introduced in this thesis based on Contrast Source Inversion (CSI-EPT) and a great performance was shown for reconstruction of properties of small structures and at tissue boundaries (Ch.6). Finally, the potential of CSI-EPT was shown for MR safety purposes (Ch.7)."--Samenvatting auteur.
Author:
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ISBN:
Category : Microwaves
Languages : en
Pages : 938
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Book Description
Author:
Publisher:
ISBN:
Category : Electrical engineering
Languages : en
Pages : 1948
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1096
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Author:
Publisher:
ISBN:
Category : Electrical engineering
Languages : en
Pages : 980
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Book Description
Author: George Papanicolaou
Publisher: Springer Science & Business Media
ISBN: 1461387256
Category : Mathematics
Languages : en
Pages : 322
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Book Description
This IMA Volume in Mathematics and its Applications RANDOM MEDIA represents the proceedings of a workshop which was an integral part of the 1984-85 IMA program on STOCHASTIC DIFFERENTIAL EQUATIONS AND THEIR APPLICATIONS We are grateful to the Scientific Committee: Daniel Stroock (Chairman) \~ende 11 Fl emi ng Theodore Harris Pierre-Louis Lions Steven Orey George Papanicolaou for planning and implementing an exciting and stimulating year-long program. We especi ally thank George Papani col aOIJ for organi zi ng a workshop which produced fruitful interactions between mathematicians and scientists from both academia and industry. George R. Sell Hans I~ei nherger PREFACE During September 1985 a workshop on random media was held at the Institute for Mathematics and its Applications at the University of Minnesota. This was part of the program for the year on Probability and Stochastic Processes at IMA. The main objective of the workshop was to bring together researchers who work in a broad area including applications and mathematical methodology. The papers in this volume give an idea of what went on and they also represent a cross section of problems and methods that are currently of interest.
Author: Yahya Rahmat-Samii
Publisher: John Wiley & Sons
ISBN: 1119683297
Category : Technology & Engineering
Languages : en
Pages : 624
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Book Description
A guide to the theory and recent development in the medical use of antenna technology Antenna and Sensor Technologies in Modern Medical Applications offers a comprehensive review of the theoretical background, design, and the latest developments in the application of antenna technology. Written by two experts in the field, the book presents the most recent research in the burgeoning field of wireless medical telemetry and sensing that covers both wearable and implantable antenna and sensor technologies. The authors review the integrated devices that include various types of sensors wired within a wearable garment that can be paired with external devices. The text covers important developments in sensor-integrated clothing that are synonymous with athletic apparel with built-in electronics. Information on implantable devices is also covered. The book explores technologies that utilize both inductive coupling and far field propagation. These include minimally invasive microwave ablation antennas, wireless targeted drug delivery, and much more. This important book: Covers recent developments in wireless medical telemetry Reviews the theory and design of in vitro/in vivo testing Explores emerging technologies in 2D and 3D printing of antenna/sensor fabrication Includes a chapter with an annotated list of the most comprehensive and important references in the field Written for students of engineering and antenna and sensor engineers, Antenna and Sensor Technologies in Modern Medical Applications is an essential guide to understanding human body interaction with antennas and sensors.
