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Tuesday, July 21, 2020 | History

2 edition of Radiofrequency hyperthermia systems found in the catalog.

Radiofrequency hyperthermia systems

Gerard Cornelis van Rhoon

Radiofrequency hyperthermia systems

experimental and clinical assessment of the feasibility of radiofrequency hyperthermia systems for loco-regional deep heating

by Gerard Cornelis van Rhoon

  • 389 Want to read
  • 10 Currently reading

Published by Delft University Press in Delft .
Written in English

    Subjects:
  • Thermotherapy.,
  • Heat -- Physiological effect.

  • Edition Notes

    Statementdoor Gerard Cornelis van Rhoon.
    The Physical Object
    Pagination199 p. :
    Number of Pages199
    ID Numbers
    Open LibraryOL18074777M
    ISBN 109062759785

    References.- 3 Use of Microwave Radiometry for Hyperthermia Monitoring and as a Basis for Thermal Dosimetry.- Introduction.- Measurement of Thermal Radiation.- Physical Principles: The Black Body Radiation.- Thermal Power Collected by an Antenna: Nyquist's Formula.- Thickness of Medium and Radiometric Measurement.- Excerpts from the book: "[A] repeated insult or irritation to a particular biological area, such as a small region of the brain, can lead to irreparable damage. [G]iven the existence of energy absorption "hot spots" each damaging exposure to radiofrequency radiation provides a new opportunity that the damage will become permanent.".

    In a prior study, we proposed a novel monopolar expandable electrode (MEE) for use in radiofrequency ablation (RFA). The purpose of our work was to now validate and evaluate this electrode using on in vitro experimental model and computer by: 1. Radiofrequency Hyperthermia ( MHz) Associated with Radiotherapy or Chemotherapy in the Treatment of Cancer, with Atraumatic Control by Microwave Thermometry ( Brand: Springer US.

    J. D. Doss, “Use of RF fields to produce hyperthermia in animal tumors,” in Proceedings of the 11th Annual Meeting International Symposium on Cancer Therapy by Hyperthermia and Radiation, pp. –, View at: Google Scholar. Nanotechnology in Cancer by Anshu Mathur Get Nanotechnology in Cancer now with O’Reilly online learning. O’Reilly members experience live online training, plus .


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Radiofrequency hyperthermia systems by Gerard Cornelis van Rhoon Download PDF EPUB FB2

This paper presents the structure and experimental results of a low cost minimally invasive radiofrequency thermal probe developed for hyperthermia therapy. The probe developed is effective and economical, and represents more than 70% in cost reduction compared to commercially available reusable RF thermal probes by: 6.

Get this from a library. Radiofrequency hyperthermia systems: experimental and clinical assessment of the feasibility of radiofrequency hyperthermia systems. The book describes the medical physical aspects of radiofrequency hyperthermia for malignant tumors on the basis of the dynamic theory of chaos for cancer.

Brief Overview of Clinically Available Hyperthermia Systems. The area of electric field cancer hyperthermia has been under investigation over the last century as a clinically relevant means of inducing noninvasive hyperthermia in patients with a variety of cancer types.

A comprehensive review of the field can be found in the literature. The Cited by: 2. A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text.

The purpose of this study was to investigate the safety and heating efficacy of repeated RF field treatments to the liver in a physiologically relevant swine model using the Kanzius non-invasive radiofrequency hyperthermia system (KNiRFH), which operates at MHz, a harmonic of the industrial-scientific-medical (ISM) designated by: Radiofrequency hyperthermia systems book.

Minimal changes were seen on the normal equine eye from hyperthermia. Several studies evaluating hyperthermia in the treatment of equine SCC have been published. 4, In one, ocular SCC in eight horses was treated by radiofrequency hyperthermia, resulting in 75% complete regression and 25% partial regression.

Most clinical hyperthermia systems operate by causing a target volume of tissue to be exposed to electromagnetic (EM) fields or ultrasound (US) radiation. The EM or US power is supplied by a generator and delivered to the pa-tient through an applicator.A diagram of the fundamental components of a hyperthermia system is shown in Figure Size: KB.

Astrahan MA, George FW () A temperature regulating circuit for experimental localized current field hyperthermia systems. Med Phys 7: – PubMed CrossRef Google Scholar Corry PM, Martinez AA, Armour EP, Edmundson G () Simultaneous hyperthermia Cited by: 2. surgery, and aesthetic medicine, the primary interest of this book.

The tissue effects Tissue hyperthermia. Heating of tissue to superphysiologic temperatures is a Monopolar Radiofrequency Systems Monopolar RF devices utilize an active electrode in the treatment area and a return electrode, usually in the form of a grounding pad with a.

Radiofrequency may be an especially interesting tool for aesthetic skin treatment. However, currently available systems vary greatly. Whereas capacitive or resistive systems may be relevant for superficial treatments when used with dosimetry monitoring, dielectric ones seem to be more suitable when both depth and surface are : Ibanez-Vera Aj.

Background: Exposure of biological subjects to electromagnetic fields with a high frequency is associated with temperature elevation. In our recent studies, we reported that non-invasive radiofrequency (RF) treatment at MHz with the field ranging from 1 KeV to 20 KeV/m2 inhibits tumor progression in animals with abdominal tumor xenografts and enhances the anticancer effect of by: Locoregional hyperthermia can be differentiated into external, interstitial and endocavitary hyperthermia.

Different heat delivery systems are available: antennae array, capacitive coupled, and inductive devices. Depending on localization and size of the tumour different methods and techniques can be applied: superficial, intratumoral (thermoablation), deep hyperthermia, endocavitary, and part.

Otherwise, ablation or high temperature hyperthermia is defined as the direct application of chemical or thermal therapies to a tumor to achieve eradication or substantial tumor destruction. Many ablation modalities have been used, including cryoablation, ethanol ablation, laser Cited by: 2.

Radiofrequency ablation (RFA) as a thermal ablative method is used to treat focal primary and secondary malignancies in organs including the liver, lungs, kidneys, bones, and adrenal glands [1–3].It has been shown that the clinical effectiveness of RFA drops off sharply for tumor diameters above 3 cm [].As a result, the clinical application of RFA is limited to small tumors (i.e., Cited by: 3.

The procedure has been used successfully as a treatment for a variety of conditions including facet-mediated pain, radiculopathies, and sacroiliac (SI) joint dysfunction. This article reviews the difference between continuous and pulsed RF lesioning, and explores the clinical evidence for their use in the treatment of back and neck pain.

Bassen HI, Coakley RF Jr () United States radiation safety and regulatory considerations for radiofrequency hyperthermia systems.

In: Nussbaum GH (ed) Physical Aspects of Hyperthermia. American Association of Physicists in Medicine, Medical Physics Monograph No. American Institute of Physics, Inc., New York, pp – Google ScholarCited by: 4.

Targeted radiofrequency (RF) heating induced hyperthermia has a wide range of applications, ranging from adjunct anti-cancer treatment to localized release of drugs.

Focal RF heating is usually approached using time-consuming nonconvex optimization procedures or approximations, which significantly hampers its application. To address this limitation, this work presents an algorithm that recasts.

Hyperthermia, a thermal therapy used to treat certain cancers, has been reported as a potential path to preventing restenosis through mild heating of stented arteries. Toward enabling a practical technology for hyperthermia restenosis treatment, this work presents a radiofrequency (RF) powered resonant stent system and in-vivo testing of the.

Radiofrequency ablation (RFA) is a medical procedure in which part of the electrical conduction system of the heart, tumor or other dysfunctional tissue is ablated using the heat generated from medium frequency alternating current (in the range of – kHz).

RFA is generally conducted in the outpatient setting, using either local anesthetics or conscious sedation :. Volume 2 in this series offers research into two specific regions of the electromagnetic spectrum: extremely low frequency fields and radiofrequency radiation, with particular emphasis on the latter.

The investigations explore: melatonin synthesis and exposure to extremely low frequency (ELF) fields ELF fields and cancer computational bioelectromagnetics health effects, including the 1/5(1).Hyperthermia radiofrequency triggered hyperthermia is another popular remotely triggered treatment method.

A study by Wang et al used gold-coated magnetoliposomes for a variety of purposes including radiofrequency triggered release, chemo-hyperthermia therapy, as .Catheter ablation works by killing a very small amount of the abnormal heart muscle that is causing the heart to beat irregularly.

During RF and cryoablation, an electrophysiologist (a heart doctor experienced in treating heart rhythm problems) threads a catheter, which is a long, flexible tube, through a vein in the crease of the leg up into.