Design of Noninvasive Hyperthermia System Using Transmit-Array Lens Antenna Configuration

A transmit-array (TA)-lens-mounted hyperthermia applicator is proposed to enhance the therapeutic suitability for treatments of superficial tumors. The hyperthermia applicator, which consists of the external radiator, TA lens, and water-bolus, is designed to provide pain-free treatment of tumors. Th...

Full description

Saved in:
Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2016, Vol.15, p.857-860
Main Authors: Choi, Woo Cheol, Lim, Seonho, Yoon, Young Joong
Format: Article
Language:English
Subjects:
Fever
Focusing
Heating
Hyperthermia
Lenses
Superficial hyperthermia
Temperature measurement
thermal focusing
Thermal lensing
thermal spreading
transmit-array lens
tumor treatment
Tumors
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A transmit-array (TA)-lens-mounted hyperthermia applicator is proposed to enhance the therapeutic suitability for treatments of superficial tumors. The hyperthermia applicator, which consists of the external radiator, TA lens, and water-bolus, is designed to provide pain-free treatment of tumors. The external radiator is designed to support a uniform electromagnetic (EM) field distribution on the lens surface, and the configuration of the TA lens leads to a summation of EM energies by compensating for the phase delays for different path lengths from each elementary cell of the TA lens to the desired treatment area, which allows for optimal heat deposition at the therapeutic target. The proposed hyperthermia applicator is configured with two lenses for thermal focusing and spreading experiments. In this study, the definition of the effective treatment area (ETA) was used to evaluate thermal performance of the hyperthermia system. The calculated ETAs in two experiments (thermal focusing and spreading configurations) showed a decrease of 49% and an increase of 281%, respectively, as compared to lens-free operation.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2015.2477428