The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Hyperthermia is an emerging cancer treatment modality, which involves applying heat to the malignant tumor. The heating can be delivered using electromagnetic (EM) energy, mostly in the radiofrequency (RF) or microwave range. Accurate patient-specific hyperthermia treatment planning (HTP) is essential for effective and safe treatments, in particular, for deep and loco-regional hyperthermia. An important...
Extensive biologic research has shown that adjuvant thermal therapy, i.e. heating tumors to 40–43°C, is a promising approach to increase the efficacy of existing radio- and chemotherapy protocols. The fact that in clinical trials, hyperthermia has shown not to increase toxicity is a major drive to invest in developing innovative devices and applicators to deliver thermal therapies. Moreover, the recent...
Clinical studies have established a strong benefit from adjuvant mild hyperthermia to radio- and chemotherapy for many tumor sites, including the head and neck. Based on simulation studies we developed the HYPERcollar applicator that allows applying focused microwave hyperthermia at 434MHz to tumors in the head and neck region. In addition, we developed a simulation based strategy using a combination...
Confining treatment to the tumor to improve therapeutic outcome and reduce toxicity, is a hot issue in cancer research. Hyperthermia is recognized as a strong sensitizer for radiotherapy and chemotherapy enhancing tumor control without increasing toxicity. Today's electromagnetic hyperthermia systems heat large tissue volumes with limited ability to selectively heat the tumor. Fortunately, tremendous...
Clinical studies have established a strong benefit from adjuvant mild hyperthermia to radio- and chemotherapy for many tumor sites, including the head and neck. The recently developed HYPERcollar allows applying local radiofrequency hyperthermia to tumors in the entire head and neck. Treatment quality is optimized using a combination of electromagnetic and temperature simulators and assessed using...
Non-invasive high-resolution 3D MR temperature maps can significantly improve dosimetry during thermal dose delivery in hyperthermic oncology. However, with long treatment times, system- and patient-induced drift in the B0 main magnetic field of the MR scanner may adversely impact the accuracy of temperature measurements. In addition, the insertion of conventional RF hyperthermia apparatus into an...
Microwave hyperthermia is a promising method of cancer treatment used to increase the temperature within the interval of 40 - 44degC. The goal of this paper is to introduce the possibility of treatment planning for superficial hyperthermia using COMSOL Multiphysics. The real model of the patient with recurrent breast cancer was developed. The waveguide horn applicator with aperture of 10 x 10 cm was...
The possibility to use shorted circular micros trip antenna as an applicator for local hyperthermia is described in this paper. This applicator is designed to provide a local treatment on areas located on the body surface or in its proximity. The applicator is designed by aid of 3D electromagnetic field simulator SEMCAD X light at working frequency of 434 MHz. Results of impedance matching measurement...
Nowadays hyperthermia is one of the possible cancer treatment method used in combination with classical therapies in several countries in the world. In this article we described the designed and optimization of a microstrip type applicator for the treatment of superficial diseases. The optimization was made in order to obtain a more uniform SAR distribution, which is one of the requirements to achieve...
Microwave thermotherapy is being used for cancer treatment. The treatment area is heated by microwave energy, which irradiated from microwave applicator. As an applicator we can use the waveguides and their possible modifications. This paper describes simulated and measured thermal distributions of the lucite cone applicator, which is composed from feeding waveguide and strip line horn (lateral faces...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.