Journal ArticleDOI
An Ultrasonic Phased Array Applicator for Hyperthermia
TLDR
An ultrasonic phased array applicator for hyperthermia provides electronic steering of the sound beam rather than mechanical movement of the transducer assembly as mentioned in this paper, and the effects of various design parameters, including individual array height and length, are discussed.Abstract:
An ultrasonic phased array applicator for hyperthermia provides electronic steering of the sound beam rather than mechanical movement of the transducer assembly. An applicator consisting of a stack of linear phased arrays is examined. The effects of various design parameters, including individual array height and length, are discussed. work was supported in part by URI Therm-X, Inc., and in part by the National Institute of Health under NIH Training Gr-ant CA 09067. and Computer Engineering Department, University of Illinois, 1406 West Green St., Urbana, IL 61801. Manuscript received December 20,1983; revised July 17,1984. This The authors are with the Bioacoustics Research Laboratory, Electricalread more
Citations
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Journal ArticleDOI
Concentric-Ring and Sector-Vortex Phased-Array Applicators for Ultrasound Hyperthermia
TL;DR: In this article, a thermal model based on the bioheat equation is also used to predict temperature distributions in volumes where important thermal parameters, particularly blood flow, are varied, and power absorption patterns in Iossy media for this class of applicators are analyzed numerically allowing a quantitative evaluation of both advantages and limitations of this approach.
Journal ArticleDOI
Thermal therapy, part 2: hyperthermia techniques.
TL;DR: In this paper, the results of combinations of other modalities such as radiotherapy or chemotherapy with hyperthermia as a new treatment strategy are summarized and a discussion of challenges and opportunities for the future are discussed.
Journal ArticleDOI
Clinical applications of focused ultrasound—The brain
TL;DR: This paper provides a historic and contemporary overview of the use of focused ultrasound for treating brain disorders.
Journal ArticleDOI
Design and evaluation of a feedback based phased array system for ultrasound surgery
TL;DR: A driving system for phased array ultrasound applicators that utilizes switching regulators in a feedback loop to automatically adjust the DC supply of a class D/E power converter to reduce power variation between elements and ensure proper operation while driving ultrasound arrays with varying element sizes.
Journal ArticleDOI
A scanned, focused, multiple transducer ultrasonic system for localized hyperthermia treatments
Kullervo Hynynen,Robert B. Roemer,D. Anhalt,Chris Johnson,Z.X. Xu,W. Swindell,Thomas C. Cetas +6 more
TL;DR: Results showed that the commercial diagnostic ultrasound scanner modified for performing hyperthermia treatments is capable of inducing a local temperature maximum deep in tissues and that tissues with high perfusion rates could be heated.
References
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Journal ArticleDOI
Hyperthermia production for cancer therapy: a review of fundamentals and methods.
TL;DR: The commonly used electromagnetic and ultrasonic techniques for producing hyperthermia for cancer therapy are reviewed and compared andvantages and disadvantages are explained in terms of fundamentals.