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Ing. Ladislav Oppl, Ph.D.

Všechny publikace

Applications of Microwaves in Medicine and Biology

  • Autoři: prof. Ing. Jan Vrba, CSc., Vrba, J., Vrba, D., Fišer, O., Ing. Ladislav Oppl, Ph.D., Merunka, I.
  • Publikace: Proceedings of European Microwave Conference in Central Europe, EuMCE 2019. Louvain-la-Neuve: European Microwave Association (EuMA), 2019. p. 496-499. ISBN 9782874870675.
  • Rok: 2019
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Paper deals with description of research results in the area of applications of microwaves in medicine and biology done in the Czech Republic (mainly at the Czech Technical University in Prague), since the year 1981. It gives information about microwave technology in thermotherapy, oriented above all on cancer treatment. Principles for implementation of hyperthermia applicators will be mentioned. New ideas for 3D non-invasive temperature monitoring for hyperthermia cancer treatment, based on UWB radar system, will be discussed. Overview of prospective microwave methods in medical diagnostics, e.g. microwave radiometry, microwave differential tomography, etc. will be given. Last but not least, research of biological effects of EM fields (both thermal and non-thermal) will be presented. We will underline international cooperation of Czech researchers with experts from other countries.

Měření komplexní permitivity biologických tkání

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Článek se zabývá metodou měření komplexní permitivity biologické tkáně, která je důležitá pro návrh různých technických zařízení využívajících elektromagnetické pole, např. pro mikrovlnnou termoterapii.

Array of Spiral Applicators for Local Thermotherapy

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    This article deals with the design and testing of planar microwave two-wireArchimedean spiral applicator. Applicator is designed to work on the frequency f = 434 MHz, aperture has a size of 35 mm × 35 mm and its matrix composition consists of the five applicator of the same type. In this case, aperture has a size of 100 mm × 100 mm. Design simulation and the simulations of Specific Absorption Rate distribution are created in program CST MICROWAVE STUDIO 2009. Final evaluation of construction solution is established on SIXPORT for S11 coefficient and evaluation of SAR distribution is evaluated by infrared camera FLIR P25.

EM exposure system with well defined dosimetry

  • Autoři: prof. Ing. Jan Vrba, CSc., Víšek, L., Ing. Ladislav Oppl, Ph.D., Vrba, D., Vrba, J., Vozeh, F., Barcal, J., Vannucci, L.
  • Publikace: Progress in Electromagnetics Research Symposium in Prague. Cambridge: Electromagnetics Academy, 2015. pp. 191-194. ISSN 1931-7360. ISBN 9781934142301.
  • Rok: 2015
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    The whole-body exposure system for unrestrained mice was designed in order to analyze the influence of electromagnetic field. The setup operating at 900 MHz was designed with respect to induced uniform field, external radiation elimination, absorbed power determination, sufficient space for mice movement together with even mice exposure and costs. The main aim of this paper is to assure that the dosimetry results reached by computer simulations can be used for determination of absorbed power in the unrestrained mouse. The whole-body exposure chamber with anatomical mouse model was simulated by two different numerical methods: finite-difference-time-domain method (FDTD) and Finite Integration Technique (FIT) and its dosimetry results were compared by computed SAR values. In our contribution we will describe our first results dealing with observed biological effects of EM field, obtained by real exposures of experimental animals.

Microwaves in Medical Diagnostics and Treatment

  • Autoři: prof. Ing. Jan Vrba, CSc., Ing. Ladislav Oppl, Ph.D., Vrbová, B., Vrba, D., Havelka, D., Červinková, K., Vojáčková, L., Merunka, I., Fišer, O.
  • Publikace: 24th International Conference Radioelektronika 2014. Bratislava: Slovak University of Technology, 2014. pp. 1-6. ISBN 978-1-4799-3715-8.
  • Rok: 2014
  • DOI: 10.1109/Radioelek.2014.6828405
  • Odkaz: https://doi.org/10.1109/Radioelek.2014.6828405
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Paper deals with a description of research activities in the field of Microwave Medical Diagnostics and Treatment done at the Dept. of EM Field, Czech Technical University (CTU) in Prague. History of these activities goes to year 1981, when the first apparatus for microwave hyperthermia cancer treatment has been developed at CTU and one year later started to be used for oncological patient treatments at Institute of Radiation Oncology (Hospital Bulovka in Prague). In present time we have several areas of research activities dealing with applications of microwave theory, technique and technologies in medical diagnostics and therapy. Future trends in medical applications of microwave technique and technology can be seen in development of new diagnostic and imaging methods based on microwaves. A significant importance for the future can be identified for the following microwave methods: Tomography, Radiometry, Measurement of complex permittivity, Imaging in the Terahertz waves band and Diagnostic radars.

Application of EM Field in Medicine

  • Autoři: prof. Ing. Jan Vrba, CSc., Ing. Ladislav Oppl, Ph.D., Vrbová, B., Vorlíček, J., Vrba, J., Vrba, D.
  • Publikace: Progress In Electromagnetics Research Symposium 2013 Taipei. Cambridge: Electromagnetics Academy, 2013. pp. 1240-1243. ISSN 1559-9450. ISBN 978-1-934142-24-0.
  • Rok: 2013
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Medical applications of microwaves (i.e., using microwave energy and microwave technique and technology for therapeutical purposes) are a quite new and a very rapidly devel- oping ¯eld. Microwave thermotherapy is being used in medicine for the cancer treatment and treatment of some other diseases since early eighties. In this contribution, we would like to oŸer general overview of present activities in the Czech Republic, i.e., clinical applications and results, technical aspects of thermo therapeutic equipment and last but not least, prospective diagnostics based on microwave principals ant technology and instrumentation.

Applicators for Research of Biological Effects of EM Field

  • Autoři: prof. Ing. Jan Vrba, CSc., Víšek, L., Ing. Ladislav Oppl, Ph.D., Vanucci, L.
  • Publikace: PIERS 2011 Marrakesh Proceedings. Cambridge, MA: The Electromagnetics Academy, 2011. pp. 1822-1824. ISSN 1559-9450. ISBN 978-1-934142-16-5.
  • Rok: 2011
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Research of interactions between EM field and biological systems is of growing interests elsewhere. Also here in czech republic there are several groups working in this field, often in international co-operations. We will describe here mainly basic technical equipment developed for 5 different research projects in the discussed area of interactions of EM field and biological systems.

Complex Permittivity Measurement as Imaging Method

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Complex permittivity measurements are important in microwave engineering, material processing, as well as biomedical applications. Probe for measuring the complex permittivity of biological tissues has been adapted from a standard RF connector for coaxial cable, called N-type connector. The original proposed range of application was fBW = 1 GHz. A typical measurement setup using the reflection method on an open-ended coaxial line consists of the network analyzer, the coaxial probe and software. Our measurements were done with the aid of Agilent 6052 network analyzer in the frequency range from 300 MHz to 3 GHz. First the calibration of the vector network analyzer is performed. Then the calibration using a reference material is done. Finally, the reflection coefficient of material under test is measured. The complex permittivity of material under test is evaluated by the MATLAB. The initial measurements on the inhomogeneous agar phantom were performed.

EM Field Based Microwave Technologies in Medicine

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Medical applications of microwaves (i.e. a possibility to use microwave energy and/or microwave technique and technology for therapeutical purposes) are a quite new and a very rapidly developing field. Microwave thermotherapy is being used in medicine for the cancer treatment and treatment of some other diseases since early eighties. In this contribution we would like to offer general overview of present activities in the Czech Republic, i.e. clinical applications and results, technical aspects of thermo therapeutic equipment and last but not least, prospective diagnostics based on microwave principals and technology and instrumentation.

Microwave Exposure Systems for Research of Biological Effects of EM Field

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Research of interactions between EM field and biological systems is of growing interests elsewhere. Also here in Czech Republic there are several groups working in this field, often in international co-operations. We will describe here mainly basic technical equipment developed for 5 different research projects in the discussed area of interactions of EM field and biological systems.

Non-invasive Measurement of Complex Permittivity of Dielectric Substrates

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Complex permittivity measurements are important in microwave engineering, material processing, as well as biomedical applications. Recently, planar circuits, such as microstrip lines, coplanar waveguides, and strip lines have found their applications in complex permittivity measurements. Planar structures, which are lightweight, compact and low cost, have been successfully applied to the determination of substrate permittivity, material moisture etc. Planar circuit measurements are classified into resonant methods (with high accuracy and sensitivity) and non-resonant methods (broadband measurements). When choosing the measurement method, we have to take into account the non-destructive form of measurement. Therefore the most appropriate method is a modified resonance method.

Numerical Dosimetry of Whole-Body Exposure System

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    The whole-body exposure system for unrestrained mice was designed in order to analyze the influence of electromagnetic field. The setup operating at 900MHz was designed with respect to induced uniform field, external radiation elimination, absorbed power determination, sufficient space for mice movement together witheven mice exposure and costs. The main aim of this paper is to assure that the dosimetry results reached by computer simulations can be used for determination of absorbed power in the unrestrained mouse. The whole-body exposure chamber with anatomical mouse model was simulated by two different numerical methods e.g. finite-difference-time-domain method (FDTD) and Finite Integration Technique (FIT) and its dosimetry results were compared by computed SAR values.

Prospective Applications of EM Fields in Medicine

  • Autoři: prof. Ing. Jan Vrba, CSc., Ing. Ladislav Oppl, Ph.D., Vrba, D., Vorlíček, J., Vrbová, B., Havelka, D.
  • Publikace: PIERS 2011 Marrakesh Proceedings. Cambridge, MA: The Electromagnetics Academy, 2011. p. 1816-1821. ISSN 1559-9450. ISBN 978-1-934142-16-5.
  • Rok: 2011
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Medical applications of microwaves (i.e., a possibility to use microwave energy and/or microwave technique and technology for therapeutical purposes) are a quite new and a very rapidly developing feld. Microwave thermotherapy is being used in medicine for the cancer treatment and treatment of some other diseases since early eighties. In this contribution we would like to offer general overview of present activities in the Czech Republic, i.e., clinical applications and results, technical aspects of thermo therapeutic equipment and last but not least, prospective diagnostics based on microwave principals ant technology and instrumentation.

Superficial Hyperthermia: Clinical Study in the Treatment of Patients with Head and Neck Cancers

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    In this paper is presented one of clinical studies as a result our longstanding cooperation on the field of microwave thermotherapy. Microwave thermotherapy - hyperthermia in combination with other treatment methods (especially with teleradiotherapy) is currently very important and effective method for cancer treatment. This treatment method is used in the Institute of Radiation Oncology at Bulovka University Hospital in Prague since early eighties of last century. Technical equipment for superficial microwave hyperthermia used for cancer treatment at this clinical working place is described as well.

Complex permittivity measurement of substrates using ring resonator

  • Pracoviště: Katedra elektromagnetického pole, Katedra teorie obvodů
  • Anotace:
    This paper deals with a complex permittivity measurement of dielectric substrates for planar circuits using ring resonator. This method is based on measurement of transmission and reflection coefficients of a transmission-type ring resonator with capacity coupling. Dielectric constant and the dissipation factor can be measured at wide frequency band by adjusting base resonant frequency of a ring resonator. Required parameters could be simply calculated according to information in this paper.

Measurement of Complex Permittivity of Biological Tissues

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    This paper describes and evaluates a method for determining complex permittivity, and presents results of permittivity measurement of agar phantom of biological tissue. A nondestructive and non-invasive method based on reflection coefficient measurement of an open-ended coaxial line attaching the material under test is used. Vector measurement of the reflection coefficient on the interface between probes and measured samples is performed with the aid of network analyzer in the frequency range from 300 kHz to 3 GHz. The results indicate that using the coaxial probe with dimensions of N connector is suitable in the frequency range approximately from 30 MHz to 1 GHz.

Microwave Medical Imaging and Diagnostics

  • Autoři: prof. Ing. Jan Vrba, CSc., Ing. Ladislav Oppl, Ph.D., Trefná, H., Žák, O., Pourová, M., Dřížďal, T., Zajíček, R.
  • Publikace: PIERS 2009 Beijing - Progress In Electromagnetics Research Symposium - Draft Abstracts. Cambridge, MA: The Electromagnetics Academy, 2009. p. 1461-1465. ISSN 1559-9450. ISBN 978-1-934142-08-0.
  • Rok: 2009
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Future trends in medical applications of microwave technique and technology can be seen in development of new diagnostic and imaging methods based on high frequency EM field. A significant importance for the future can be identified for the following methods: Mi- crowave tomography, Microwave radiometry, Measurement of complex permittivity, Imaging in the Terahertz waves band and Microwave diagnostic radars.

Technical Basis for Research of Biological Effects of EM Field

  • Autoři: prof. Ing. Jan Vrba, CSc., Togni, P., Víšek, L., Ing. Ladislav Oppl, Ph.D., Vrba, D., Vannucci, L.
  • Publikace: 12th International Symposium on Microwave and Optical Technology. New Delhi: University of Delhi, 2009. p. 1373-1376.
  • Rok: 2009
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Research of interactions between EM Field and biological systems is of growing interests elsewhere. Also here in Czech Republic there are several groups working in this field, often in international co-operations. We will describe here mainly basic technical equipment developed for 5 different research projects in the discussed area of interactions of EM field and biological systems.

Broadband Measurement of Complex Permittivity Using Reflection Method and Coaxial Probes

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Paper describes and evaluates a method for determining complex permittivity, and presents results of dielectric measurements of some substances. Complex permittivity of a phantom of biological muscle tissue, of some industrial chemicals and dielectric is found out. A suitable way to make a dielectric measurement that is nondestructive and noninvasive is to use a reflection method on an open ended coaxial line. Two coaxial probes are under investigation. Vector measurement of the reflection coefficient on the interface between probes and measured samples is performed with the aid of network analyzer in frequency range from 300 kHz to 3 GHz. Numerical modeling (FDTD) is compared with real measurement and a comparison is presented. Results indicate that the reflection method is suitable for the determination of dielectric parameters: using the N-type coaxial probe is method applicable in frequency range app. from 30 MHz to 1 GHz and using SMA-type probe in range app. from 30 MHz to 3 GHz.

Design of an Exposure Chamber for Biological Experiments

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    The aim of this paper is to design and to simulate an exposure chamber which offer a new possibility how to measure lossy power in biological tissue. The basic properties such as electromagnetic field distribution and impedance matching of our designed chamber were optimized and verified by the aid of a 3D electromagnetic field simulator. As a result of our effort a cylinder waveguide chamber with a working frequency 900MHz has been designed. This chamber offer a new way of dosimetry.

Experiences with Superficial Hyperthermia in the Treatment of Patients with Head and Neck Cancers

  • Autoři: Ing. Ladislav Oppl, Ph.D., Zapletal, J., prof. Ing. Jan Vrba, CSc., Kvěch, J., Kubeš, J., Pála, M.
  • Publikace: Proceedings of the 14th Conference on Microwave Techniques COMITE 2008. Praha: Československá sekce IEEE, 2008. pp. 146-150. ISBN 978-1-4244-2137-4.
  • Rok: 2008
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    In this paper are presented experiences with combination of teleradiotherapy and superficial hyperthermia in the treatment of patients with head and neck cancers, especially in cases with superficial tumors or lymph node metastases, in the Institute of Radiation Oncology in Prague. Microwave thermotherapy - hyperthermia in combination with other treatment methods (mainly with teleradiotherapy) is currently very effective and important method for cancer treatment. Technical equipment for before-mentioned therapeutic method in this clinical working place is described as well. The treatment results are part of this paper as well.

Exposure System for Verification of Effects of Electromagnetic Field

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    The main aim of this work is to design and to simulate an exposure chamber which can simulate mobile phone emission patterns in order to analyze the influence of electromagnetic field on small animals. During our previous research we found the most suitable type of an exposure chamber for this purpose. The basic properties such as electromagnetic field distribution and impedance matching of our designed chamber were optimized and verified by the aid of a 3D electromagnetic field simulator. As a result of our effort a cylinder waveguide chamber with a working frequency 900MHz has been designed.

Measurement of Dielectric Properties of Moisture Textile

  • Autoři: Pourová, M., Zajíček, R., Ing. Ladislav Oppl, Ph.D., prof. Ing. Jan Vrba, CSc.,
  • Publikace: Proceedings of the 14th Conference on Microwave Techniques COMITE 2008. Praha: Československá sekce IEEE, 2008. pp. 111-114. ISBN 978-1-4244-2137-4.
  • Rok: 2008
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    The measurement of dielectric parameters of wet textile materials is very important for the design of microwave drying and heating applicators in textile industry. In this contribution there are presented results of two measurement systems - Six-port measurement system and Agilent Impedance/material analyzer. Dielectric properties generally depend on the frequency of applied electromagnetic field, moisture content, temperature and density of materials. However, the amount of water in the drying materials is mostly a dominant factor.

Medical Diagnostics Using Reflection Method and Waveguide Probes - Feasibility Study

  • Autoři: Zajíček, R., Smejkal, T., Ing. Ladislav Oppl, Ph.D., prof. Ing. Jan Vrba, CSc.,
  • Publikace: PIERS - Progress In Electromagnetics Research Symposium - Draft Proceedings. Cambridge, MA: The Electromagnetics Academy, 2008. p. 745-749. ISSN 1559-9450. ISBN 978-1-934142-06-6.
  • Rok: 2008
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Paper deals with complex permittivity measurement of biological tissues. Application of a waveguide probe for this measurement is shown. A nondestructive and noninvasive method based on reflection coefficient measurement - probe is attaching the material under test, is used. New types of the probes are under investigation - the section of waveguide with H cross-section, the section of waveguide with the rectangular cross-section and with shorted walls, the section of waveguide with inserted dielectric wedge and finally the section of waveguide filled with liquid dielectric. Properties of these prototypes are studied in frequency range from 300 kHz to 3 GHz. FDTD method is utilized for the numerical modeling and simulation of the reflection coefficient. Results indicate that the most interesting and suitable is the solution with removable dielectric.

Medical imaging and diagnostics based on microwaves

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Future trends in medical applications of microwave technique and technology can be seen in development of new diagnostic and imaging methods based on high frequency EM field. A significant importance for the future can be identified for the following methods: Microwave tomography, Microwave radiometry, Measurement of complex permittivity, Imaging in the Terahertz waves band and Microwave diagnostic radars.

Microwave Medical Imaging and Diagnostics

  • Autoři: prof. Ing. Jan Vrba, CSc., Ing. Ladislav Oppl, Ph.D., Vrba, J., Vrba, D.
  • Publikace: European Microwave Week 2008 "Bridging Gaps" Conference Proceedings. London: Horizon House Publications, 2008. pp. 408-411. ISBN 978-1-4244-3794-8.
  • Rok: 2008
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Future trends in medical applications of microwave technique and technology can be seen in development of new diagnostic and imaging methods based on high frequency EM field. A significant importance for the future can be identified for the following methods: Microwave tomography, Microwave radiometry, Measurement of complex permittivity, Imaging in the Terahertz waves band and Microwave diagnostic radars.

Prospective Applications of Microwaves in Medicine

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    In this paper a technique for improvement of radiation efficiency of metamaterial zero order antenna based on increasing of vertical antenna height is presented. Result of this method is here demonstrated by comparison of the two microstrip line implementation of the zero order resonator (ZOR) antennas with different height of upper conductor above ground plane. Improved ZOR antenna exhibits 75% efficiency, while the reference antenna efficiency is 10% only.

Waveguide Probes for Complex Permittivity Measurement

  • Autoři: Zajíček, R., Smejkal, T., Ing. Ladislav Oppl, Ph.D., prof. Ing. Jan Vrba, CSc.,
  • Publikace: Proceedings of the 14th Conference on Microwave Techniques COMITE 2008. Praha: Československá sekce IEEE, 2008. pp. 107-110. ISBN 978-1-4244-2137-4.
  • Rok: 2008
  • DOI: 10.1109/COMITE.2008.4569903
  • Odkaz: https://doi.org/10.1109/COMITE.2008.4569903
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Paper deals with complex permittivity measurement of biological tissues. Application of a waveguide probe for this measurement is shown. A nondestructive and noninvasive method based on reflection coefficient measurement attaching the material under test is used. New types of the probes are under investigation - the section of waveguide with H cross-section, the section of waveguide with the rectangular cross-section and with shorted walls, the section of waveguide with inserted dielectric wedge and finally the section of waveguide filled with liquid dielectric. Properties of these prototypes are studied in frequency range from 300 kHz to 3 GHz. FDTD method is utilized for the numerical modeling and simulation of the reflection coefficient. Results indicate that the most interesting and suitable is the solution with removable dielectric.

Design and Comparison of Exposure Chambers for Verification of Microwave Influence on Biological Systems

  • Autoři: Víšek, L., Togni, P., prof. Ing. Jan Vrba, CSc., Ing. Ladislav Oppl, Ph.D.,
  • Publikace: PIERS 2007 Prague - Proceeding of Progress In Electromagnetics Research Symposium. Cambridge, MA: The Electromagnetics Academy, 2007. p. 454-458. ISSN 1559-9450. ISBN 978-1-934142-02-8.
  • Rok: 2007
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    The main aim of our work is to design and simulate an exposure chamber in order to analyze the influence of electromagnetict field on mice which can simulate mobile phone emission patterns. We use two types of structures and compare their properties to find the best design for our future work.

Měření komplexní permitivity biologické tkáně

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Měření komplexní permitivity biologických tkání je perspektivní metoda v lékařské diagnostice a zobrazování. Znalost komplexní permitivity v léčené oblasti, tzn. znalost komplexní permitivity zdravé a nádorové tkáně, je velmi důležitá například k nalezení (rozpoznání) nádorových buněk v lékařské diagnostice nebo pro inženýry k návrhu termoterapeutických aplikátorů. K určení dielektrických parametrů biologických tkání je vhodná odrazná metoda na otevřeném konci koaxiálního kabelu. V článku jsou shrnuty výsledky měření pomocí speciální koaxiální sondy a vektorového analyzátoru obvodů v pásmu kmitočtů od 17 MHz do 2 GHz. Měření je také modelováno v simulátoru elektromagnetického pole. Výsledky z měření a modelování jsou porovnány.

Microwave Thermotherapy for Cancer Treatment

  • Autoři: prof. Ing. Jan Vrba, CSc., Ing. Ladislav Oppl, Ph.D., Kvěch, J., Kubeš, J.
  • Publikace: PIERS 2007 Progress In Electromagnetics Research Symposium - Proceedings - CN. Cambridge, MA: The Electromagnetics Academy, 2007. pp. 643-644. ISSN 1559-9450.
  • Rok: 2007

Workstation for Medical Diagnostics Based on Dielectric Properties Measurement of Biological Tissue

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    This paper describes a method for determining the dielectric constant of a biological tissue. A suitable way to make a dielectric measurement that is nondestructive and noninvasive for the biological substance and broadband at the frequency range of the network analyzer is to use a reflection method on an open ended coaxial line. A coaxial probe in the frequency range of the network analyzer from 300 kHz to 3 GHz is under investigation and also a calibration technique and the behavior of discrete elements in an equivalent circuit of an open ended coaxial line. Information about the magnitude and phase of the reflection coefficient on the interface between a biological tissue sample and a measurement probe is modeled with the aid of an electromagnetic field simulator. The numerical modeling is compared with real measurements, and a comparison is presented.

Measurement of Dielectric and Temperature Properties of Chemicals

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Every material has a unique set of electrical characteristics that depend on its dielectric properties. This paper describes a method for dielectric measurements of chemicals. The well known reflection method by measuring on an open ended coaxial line has been modified for convenient determination of dielectric parameters of some agressive substances which are important for industrial applications. The temperature dependence of these parameters was also under investigation.

Microwave Medical Imaging

  • Autoři: prof. Ing. Jan Vrba, CSc., Ing. Ladislav Oppl, Ph.D., Trefná, H., Pourová, M., Dřížďal, T., Zajíček, R.
  • Publikace: Advanced Engineering Design AED 2006. Praha: České vysoké učení technické v Praze, 2006. ISBN 80-86059-44-8.
  • Rok: 2006
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Future trends in medical applications of microwave technique and technology can be seen in development of new diagnostic and imaging methods based on high frequency EM field. A significant importance for the future can be identified for the following methods: Microwave tomography, Microwave radiometry, Measurement of complex permittivity, Imaging in the Terahertz waves band and Microwave diagnostic radars.

Clinical Experience with Local Microwave Hyperthermia

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Local microwave hyperthermia in combination with other treatment methods (mainly with radiotherapy) represents very effective treatment of cancer. In this paper a technical equipment used for the hyperthermia treatment is described and our 24 years old experience with this method in the Institute of Radiation Oncology in Prague is presented.

Measurement of Dielectric Properties of Biological Tissue

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    The paper describes a method for the measurement of biological tissue dielectric properties at radio frequency band in the range of 20 to 2000 MHz. For this purpose it is optimal to use the reflection measurement method on an open-ended coaxial line. It is a noninavsive measurement method. The real measurement situation is modelled in the electromagnetic field simulator. Comparision of simulated and measured data are presented as well.

Method of Measuring Dielectric Properties of Biological Tissue and its use in Medical Imaging and Diagnostic

  • Autoři: Zajíček, R., Ing. Ladislav Oppl, Ph.D., prof. Ing. Jan Vrba, CSc.,
  • Publikace: The 3rd European Medical and Biological Engineering Conference - EMBEC´05. Praha: Společnost biomedicínského inženýrství a lékařské informatiky ČLS JEP, 2005. ISSN 1727-1983.
  • Rok: 2005
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Every material has a unique set of electrical charakteristics that are dependent on its dielectric properties. This paper describes a method for dielectric measurements of biological tissue and shows possibilities o use this method in medical imaging and diagnostics. A reflection method on an open ended coaxial line is a nondestructive and noninvasive measurement method which exclusively offers possibilities for "in vivo" as well as "in vitro" measurements. The real meausrement situation is modelled in an electromagnetic field simulator. Comparison of simulated and measured date are presented as well.

Microwave Drying Machine for Textile Materials

  • Autoři: prof. Ing. Jan Vrba, CSc., Stejskal, M., Klepl, R., Richter, A., Pourová, M., Žák, O., Herza, J., Ing. Ladislav Oppl, Ph.D.,
  • Publikace: European Microwave Week 2005 Conference Proceedings. London: Horizon House Publications, 2005. pp. 1051-1054. ISBN 2-9600551-2-8.
  • Rok: 2005
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    In this paper we describe our new results dealing with microwave industrial applicators used for drying of textile materials. We have designed and evaluated two different types of these applicators: open-resonatortype and waveguide-type one. We describe here basic models of the discussed plicators, results of numerical modelling and experimental evaluation as well. Prototype of microwave drying machine working at frequency 2.45 GHz is reported.

Microwave Medical Imaging and Diagnostics

  • Autoři: prof. Ing. Jan Vrba, CSc., Ing. Ladislav Oppl, Ph.D., Trefná, H., Žák, O., Pourová, M., Dřížďal, T., Zajíček, R.
  • Publikace: The 3rd European Medical and Biological Engineering Conference - EMBEC´05. Praha: Společnost biomedicínského inženýrství a lékařské informatiky ČLS JEP, 2005. ISSN 1727-1983.
  • Rok: 2005
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Future trends in medical applications of microwave technique and technology can be seen in development of new diagnostic and imaging methods based on high frequency em field. A significant importance for the future can be identified for the following methods: microwave tomography, microwave radiometry, measurement of complex permittivity, imaging in the terahertz waves band and microwave diagnostic radars.

Theory of Evanescent Mode Applicators

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Paper deals with theoretical basis of technology so called waveguide applicators with evanescent mode, which are used for cancer treatment.

Waveguide Applicators for Microwave Thermotherapy: Aperture and Water Bolus Resonances

  • Autoři: prof. Ing. Jan Vrba, CSc., Cvek, J., Herza, J., Chovanec, R., Ing. Ladislav Oppl, Ph.D.,
  • Publikace: The 3rd European Medical and Biological Engineering Conference - EMBEC´05. Praha: Společnost biomedicínského inženýrství a lékařské informatiky ČLS JEP, 2005. ISSN 1727-1983.
  • Rok: 2005
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Paper deals with our new results in the field of external local appliators used for microwave thermotherapy, like e.g. cancer treatment, physiotherapy, etc.

Applicators for Deep Local Microwave Thermotherapy

  • Autoři: prof. Ing. Jan Vrba, CSc., Cvek, J., Chovanec, R., Herza, J., Ing. Ladislav Oppl, Ph.D., Trefná, H., Pavlas, J., Kvěch, J., Kubeš, J., Veselá, M.
  • Publikace: PIERS 2004 (Nanjing) Proceedings. Cambridge: Electromagnetics Academy, 2004. pp. 81. ISBN 0-9679674-4-9.
  • Rok: 2004
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Design and evaluation of waveguide applicators (working either above cut-off frequency or evanescent mode applicator working below waveguide cut-off) are being described in this paper. Theoretical models of the mentioned applicators and its SAR distribution, results of numerical modelling (software product SEMCAD) and experimetal evaluations are discussed.

Hyperthermia Applicator Compatible with "MR"

  • Autoři: prof. Ing. Jan Vrba, CSc., Ing. Ladislav Oppl, Ph.D., Chovanec, R., Herza, J., Cvek, J., Trefná, H., Pavlas, J., Zuna, I., Peschke, P., Poušek, L.
  • Publikace: Conference Proceedings of Radioelektronika 2004. Bratislava: Slovak University of Technology, 2004. pp. 300-303. ISBN 80-227-2017-8.
  • Rok: 2004
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Temperature monitoring and control during microwave thermotherapy goes to non-invasive 3D thermometry system, e.g. either Magnetic Resonance (MR) or ultrasound (US). The goal of this paper is to describe design and experimental evaluation of a new type applicator for microwave thermotherapy, which will be compatible with MR.

Lékařské a průmyslové aplikace mikrovlnné techniky

  • Autoři: prof. Ing. Jan Vrba, CSc., Herza, J., Trefná, H., Cvek, J., Ing. Ladislav Oppl, Ph.D., Chovanec, R., Pourová, M.
  • Publikace: Sborník vzdělávacích a vědeckovýzkumných činností a nabídek. Praha: IEEE Czechoslovakia Section, 2004. pp. 34-35. ISBN 80-86582-15-9.
  • Rok: 2004
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Paper delas with general overview of prospectiv applications of microwaves in medecine (oncological clinical treatment etc.) and in industry (microwave drying, etc.).

Microwave Applicator for Animal Experiments

  • Autoři: prof. Ing. Jan Vrba, CSc., Chovanec, R., Ing. Ladislav Oppl, Ph.D., Herza, J., Cvek, J., Trefná, H., Zuna, I., Peschke, P.
  • Publikace: PIERS 2004 (Nanjing) Proceedings. Cambridge: Electromagnetics Academy, 2004. pp. 83. ISBN 0-9679674-4-9.
  • Rok: 2004
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    The goal of the proposed paper is to describe design and experimental evaluation of a new type applicator for microwave thermotherapy, which will be compatible with MR. The first applicator of this type is just being used for a hyperthermia treatment of the experimentally induced pedicle tumors of the rat.

Microwave Applicators for "BMH" Thermotherapy

  • Autoři: prof. Ing. Jan Vrba, CSc., Hlaváč, R., Herza, J., Chovanec, R., Cvek, J., Ing. Ladislav Oppl, Ph.D.,
  • Publikace: Proceedings of SPIE: Microwave and Optical Technology 2003, Vol. 5445. Bellingham: SPIE, 2004. pp. 402-405. ISBN 0-8194-5368-4.
  • Rok: 2004

Microwave Applicators for "BPH" Thermotherapy

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Paper deals with new results in the field of intracavitary microwave applicators used for Benign Prostatic Hyperplasia (BHP) treatment.

Microwave Applicators for "BPH" Thermotherapy

  • Autoři: prof. Ing. Jan Vrba, CSc., Bolmsjo, M., Chovanec, R., Herza, J., Cvek, J., Ing. Ladislav Oppl, Ph.D., Kubeš, J., Kvěch, J.
  • Publikace: European Microwave Week 2004 - Conference Proceedings. 2004. pp. 1553-1556. ISBN 1-58053-994-7.
  • Rok: 2004
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Paper deals with new results in the field of intracavitary microwave applicators used for Benign Prostatic Hyperplasia (BPH) treatment. Costs and risks associated with clasical BPH treatment (TURP and open surgery) have promoted the development of minimally invasive methods. Microwave thermotherapy, varying forms of laser treatment, transurethral needle ablation, etc. have all been developed in the 1990s. The underlying principle behind these methods is to coagulate prostatic adenomatous tissue by means of heat. Of all the available minimal invasive treatment modalities, transurethral microwave is one of the most wide spread at present [1].

Microwave Thermotherapy

  • Autoři: prof. Ing. Jan Vrba, CSc., Ing. Ladislav Oppl, Ph.D., Kvěch, J., Kubeš, J., Herza, J., Chovanec, R., Trefná, H., Pavlas, J., Cvek, J.
  • Publikace: Conference Proceedings of Radioelektronika 2004. Bratislava: Slovak University of Technology, 2004. pp. 496-499. ISBN 80-227-2017-8.
  • Rok: 2004
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    In this paper we would like to outline new trends in microwave thermotherapy, both clinical and technical. In details we want here describe the field of intracavitary treatment with major applicatations in urology, the so called BPH treatment. New trends we can divide into two major groups: clinical trends, technical trends.

Microwave Thermotherapy: Technical Aspects

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    The goal of this paper is to describe design and experimental evaluation of a new type applicator for microwave thermotherapy, which will be compatible with NMR. The first applicator of this type is just being used for a hyperthermia treatment of the experimentally induced pedicle tumours of the rat.

Wavequide Applicators for Deep Local Treatment of Cancer

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Paper deals with design criteria for waveguide applicators for deep local microwave thermotherapy. Numerical simulations and experimental evaluations are described.

Applicators for Microwave Thermotherapy

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Paper deals with our new results in the field of waveguide and intracavitary applicators used for microwave thermotherapy, like e.g. cancer treatment, phasiotherapy, benign prostatic hyperplasia (BPH) treatment, etc.

Hypertermie - standardní modalita komplexní protinádorové léčby

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    V tomto příspěvku je shrnut historický vývoj hypertermické léčby nádorových onemocnění ve světě i u nás. Jsou zmíněny mechanismy účinku HT na makroskopické, molekulárně biologické i imunologické úrovni. Je popsáno stávající technické vybavení spolu s výhledem do budoucna. Přiložen je přehled klinických studií, kde se jednoznačně prokázal pozitivní efekt HT při léčbě onkologických pacientů.

Lékařské aplikace interakcí biologické tkáně s elektromagnetickým polem

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Příspěvek je zaměřen na otázky lékařských aplikací interakce biologické tkáně s elektromagnetickým polem, zejména pak na využití při léčbě nádorových onemocnění.

Microwave Thermotherapy in Czech Republic

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    We would like to describe our new technical results dealing with microwave thermotherapy in the cancer treatment. Our research interest is to develop applicators for deep local heating and for intracavitary cancer treatment as well. Special interest is given to the case of BPH prostate treatment. Basic evaluation of clinical results is presented.

Návrh a vývoj aplikátorů pro lékařské a průmyslové účely

  • Autoři: prof. Ing. Jan Vrba, CSc., Ing. Ladislav Oppl, Ph.D.,
  • Publikace: Sborník vzdělávacích a vědeckovýzkumných činností a nabídek katedry elektromagnetického pole FEL ČVUT. Praha: Československá sekce IEEE, 2003. pp. 44-45. ISBN 80-86582-13-2.
  • Rok: 2003
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Článek se zabývá vývojem v oblasti aplikací mikrovlnné techniky v medicíně a průmyslu - nástroji pro efektivná ohřev a vysoušení.

Non-Destructive Permittivity Measurement of Biological Tissue

  • Autoři: Ing. Ladislav Oppl, Ph.D.,
  • Publikace: COMITE 2003. Praha: IEEE Czechoslovakia Section, 2003, pp. 45-48. ISBN 80-86582-09-4.
  • Rok: 2003
  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Material dielectric properties measurement could be achieved using measured reflection coefficient at the end of a coaxial cable placed adjacent to the material under test. So far, these measurements have been evaluated using a simple RC equivalent model. This paper presents this measurement method and its results carried out on models of biological tissue - phantoms.

Treatment Planning in Microwave Thermotherapy

  • Pracoviště: Katedra elektromagnetického pole
  • Anotace:
    Our work is focused on the design, optimisation and experimental evaluation of the microwave applicators. This means to design a microwave structure capable above all: - to transfer efficiently the electromagnetic energy into the biological tissue, - to create the required 3D temperature distribution in the area to be treated.

Experiences on Microwave Hyperthermia in Clivical Practice

Hyperthermia Applicator Compatible with "MR"

Hyperthermia Applicator Compatible with "MR"

Hyperthermia Applicator Compatible with "MR"

Hyperthermia Applicator Compatible with Non-Invasive Thermometry System

  • Autoři: prof. Ing. Jan Vrba, CSc., Zuna, I., Peschke, P., Pousek, L., Lapes, M., Saliba, G., Ing. Ladislav Oppl, Ph.D., Novák, P.
  • Publikace: PIERS 2002 - Progress In Electromagnetics Research Symposium - Proceedings. Cambridge: Electromagnetics Academy, 2002. pp. 781. ISBN 0-9679674-2-2.
  • Rok: 2002

Interactions of Biological Tissue with Electromagnetic Field

  • Autoři: prof. Ing. Jan Vrba, CSc., Vokurka, J., Ing. Ladislav Oppl, Ph.D., Chovanec, R., Cvek, J., Herza, J., Kunstát, P.
  • Publikace: WORKSHOP - Grantové fórum. Praha: ČVUT FEL, Katedra elektromagnetického pole, 2002. pp. 86-88. ISBN 80-86582-06-X.
  • Rok: 2002

LED Probes for Evaluation of Microwave Applicators

Microwave Thermotherapy for Cancer Treatment and Other Medical Applications

  • Autoři: prof. Ing. Jan Vrba, CSc., Ing. Ladislav Oppl, Ph.D., Chovanec, R., Herza, J., Cvek, J., Kunstát, P., Kvěch, J., Kubeš, J., Veselá, M.
  • Publikace: WORKSHOP - Grantové fórum. Praha: ČVUT FEL, Katedra elektromagnetického pole, 2002. pp. 89-92. ISBN 80-86582-06-X.
  • Rok: 2002

Microwave Thermotherapy in Czech Republic

Microwave Thermotherapy in Czech Republic - Technical and Clinical Aspects

  • Autoři: prof. Ing. Jan Vrba, CSc., Lapes, M., Ing. Ladislav Oppl, Ph.D., Kvech, J., Petruzelka, L.
  • Publikace: PIERS 2002 - Progress In Electromagnetics Research Symposium - Proceedings. Cambridge: Electromagnetics Academy, 2002. pp. 782. ISBN 0-9679674-2-2.
  • Rok: 2002

Microwave Thermotherapy: Near Future Trends

Microwave Waveguide Applicators

Microwave Waveguide Applicators

Návrh a vývoj aplikátorů pro lékařské a průmyslové účely

Návrh a vývoj aplikátorů pro průmyslové účely

Clinical Experiences on Superficial Microwave Hyperthermia

  • Autoři: Kvěch, J., Ing. Ladislav Oppl, Ph.D.,
  • Publikace: Biologické systémy a elektromagnetické pole. Praha: ČVUT FEL, Katedra elektromagnetického pole, 2001. pp. 25-27. ISBN 80-01-02389-3.
  • Rok: 2001

Experiences on Microwave Hyperthermia in Clinical Practice

Hyperthermia Applicator Compatible with "NMR"

  • Autoři: prof. Ing. Jan Vrba, CSc., Saliba, G., Ing. Ladislav Oppl, Ph.D., Chovanec, R., Zuna, I., Peschke, P., Poušek, L., Novák, P.
  • Publikace: Conference Proceedings - 31st EuMC 2001. London: CMP Europe Ltd, 2001. pp. 297-300. ISBN 08-62-13148-0.
  • Rok: 2001

Hyperthermia Applicator Compatible with "NMT"

  • Autoři: prof. Ing. Jan Vrba, CSc., Saliba, G., Ing. Ladislav Oppl, Ph.D., Chovanec, R., Zuna, I., Peschke, P.
  • Publikace: Biologické systémy a elektromagnetické pole. Praha: ČVUT FEL, Katedra elektromagnetického pole, 2001. pp. 45-47. ISBN 80-01-02389-3.
  • Rok: 2001

Hyperthermia Applicator Compatible with Non-Invasive Thermometry System

Microwave Hyperthermia Applicator Compatible with Non-Invasive Thermometry System

Microwave Thermotherapy: Near Future Trends

New Trends in Microwave Thermotherapy

  • Autoři: prof. Ing. Jan Vrba, CSc., Lapeš, M., Voleš, O., Ing. Ladislav Oppl, Ph.D., Saliba, G., Smítka, J., Klouda, J.
  • Publikace: Proceedings of Workshop 2001. Praha: České vysoké učení technické v Praze, 2001. pp. 822. ISBN 80-01-02335-4.
  • Rok: 2001

New Trends in Microwave Thermotherapy

  • Autoři: prof. Ing. Jan Vrba, CSc., Bolmsjo, M., Lapeš, M., Peschke, P., Zuna, I., Voleš, O., Ing. Ladislav Oppl, Ph.D., Saliba, G.
  • Publikace: Radioelektronika 2001 - Conference Proceedings. Brno: VUT v Brně, FEI, Ústav radioelektroniky, 2001, pp. 98-100. ISBN 80-214-1861-3.
  • Rok: 2001

New Trends in Microwave Thermotherapy

  • Autoři: prof. Ing. Jan Vrba, CSc., Bolmsjo, M., Lapeš, M., Ing. Ladislav Oppl, Ph.D., Hlaváč, R., Chovanec, R., Novák, P.
  • Publikace: Biologické systémy a elektromagnetické pole. Praha: ČVUT FEL, Katedra elektromagnetického pole, 2001. pp. 48. ISBN 80-01-02389-3.
  • Rok: 2001

SAR of Hyperthermia Waveguide Applicators

Transdisciplinary Research in Biomedical Engineering: Microwave Thermotherapy

Waveguide Hyperthermia Applicators: "SAR" Analysis

  • Autoři: prof. Ing. Jan Vrba, CSc., Ing. Ladislav Oppl, Ph.D., Chovanec, R., Voleš, O., Saliba, G., Lapeš, M.
  • Publikace: Biologické systémy a elektromagnetické pole. Praha: ČVUT FEL, Katedra elektromagnetického pole, 2001. pp. 49-50. ISBN 80-01-02389-3.
  • Rok: 2001

"NMR" Compatibility of Microwave Hyperthermia Applicators

  • Autoři: prof. Ing. Jan Vrba, CSc., Zuna, I., Peschke, P., Schad, L., Lapeš, M., Ing. Ladislav Oppl, Ph.D., Novák, P.
  • Publikace: U.R.S.I. - Electromagnetic Aspects of Selforganization in Biology. Praha: AV ČR, Ústav radiotechniky a elektroniky, 2000. pp. 65. ISBN 80-86269-04-3.
  • Rok: 2000

Analyses of Intracavitary Thermotherapy

Future Trends in Microwave Thermotherapy

  • Autoři: prof. Ing. Jan Vrba, CSc., Lapeš, M., Blažek, V., Ing. Ladislav Oppl, Ph.D., Saliba, G.
  • Publikace: Biologické systémy a elektromagnetické pole. Praha: ČVUT FEL, Katedra elektromagnetického pole, 2000. pp. 40. ISBN 80-01-02185-8.
  • Rok: 2000

Měření komplexní permitivity biologické tkáně neinvazivní metodou

  • Autoři: Ing. Ladislav Oppl, Ph.D.,
  • Publikace: Biologické systémy a elektromagnetické pole. Praha: ČVUT FEL, Katedra elektromagnetického pole, 2000. pp. 30-32. ISBN 80-01-02185-8.
  • Rok: 2000

Microwave Application for "BPH" Thermotherapy

Microwave Applicators for BPH Thermotherapy

  • Autoři: prof. Ing. Jan Vrba, CSc., Lapeš, M., Domeš, J., Ing. Ladislav Oppl, Ph.D., Saliba, G.
  • Publikace: U.R.S.I. - Electromagnetic Aspects of Selforganization in Biology. Praha: AV ČR, Ústav radiotechniky a elektroniky, 2000. pp. 66. ISBN 80-86269-04-3.
  • Rok: 2000

Noninvasive Measurement of Biological Tissue Dielectric Properties

  • Autoři: Ing. Ladislav Oppl, Ph.D.,
  • Publikace: Radioelektronika 2000 - Conference Proceedings. Bratislava: STU v Bratislave, FEI, 2000, pp. 11-14. ISBN 80-227-1389-9.
  • Rok: 2000

Noninvasive Methods for the Measurement of Biological Tissue Properties

  • Autoři: Ing. Ladislav Oppl, Ph.D.,
  • Publikace: Proceedings of Workshop 2000. Praha: České vysoké učení technické v Praze, 2000. pp. 537. ISBN 80-01-02229-3.
  • Rok: 2000

"SAR" Distribution in the Biological Tissue Treated by Microwave Thermotherapy

  • Autoři: prof. Ing. Jan Vrba, CSc., Blažek, V., Lapeš, M., Ing. Ladislav Oppl, Ph.D., Rovenský, P.
  • Publikace: Biologické systémy a elektromagnetické pole. Praha: ČVUT FEL, Katedra elektromagnetického pole, 1999. pp. 43-47. ISBN 80-01-01997-7.
  • Rok: 1999

Applicator for Animal Treatment by Microwave Thermotherapy

  • Autoři: prof. Ing. Jan Vrba, CSc., Zuna, I., Peschke, P., Schad, L., Poušek, L., Ing. Ladislav Oppl, Ph.D., Novák, P.
  • Publikace: Biologické systémy a elektromagnetické pole. Praha: ČVUT FEL, Katedra elektromagnetického pole, 1999, pp. 51-53. ISBN 80-01-01997-7.
  • Rok: 1999

Clinical Application of Hyperthermia

  • Autoři: Ing. Ladislav Oppl, Ph.D., Kvěch, J.
  • Publikace: 9th International Czech-Slovak Scientific Conference Radioelektronika 99. Brno: VUT v Brně, 1999. pp. 458-461. ISBN 80-214-1327-1.
  • Rok: 1999

Intracavitary Applicators for BPH Thermotherapy

  • Autoři: prof. Ing. Jan Vrba, CSc., Lapeš, M., Ing. Ladislav Oppl, Ph.D., Saliba, G., Domeš, J.
  • Publikace: Biologické systémy a elektromagnetické pole. Praha: ČVUT FEL, Katedra elektromagnetického pole, 1999. pp. 48-50. ISBN 80-01-01997-7.
  • Rok: 1999

Measurement of Biological Tissue Dielectric Parameters

  • Autoři: Ing. Ladislav Oppl, Ph.D.,
  • Publikace: Proceedings of Workshop 99. Praha: České vysoké učení technické v Praze, 1999. pp. 330.
  • Rok: 1999

Microwave Applicators for BHP Thermotherapy

  • Autoři: prof. Ing. Jan Vrba, CSc., Domeš, J., Lapeš, M., Ing. Ladislav Oppl, Ph.D., Saliba, G.
  • Publikace: The 10th Conference on Microwave Techniques COMITE 1999. Prague: Czechoslovakia Section IEEE, 1999. pp. 229-230. ISBN 80-902417-3-5.
  • Rok: 1999

Microwave Applicators for BPH Thermotherapy

  • Autoři: prof. Ing. Jan Vrba, CSc., Lapeš, M., Domeš, J., Ing. Ladislav Oppl, Ph.D., Saliba, G.
  • Publikace: IPEM Meetings: Microwave and RF Fields - Medical Application and Safety Related Issues Meeting. York: The Institute of Physics and Engineering in Medicine, 1999. pp. 37.
  • Rok: 1999

Microwave Hyperthermia Applicator for Animal Experiments

  • Autoři: prof. Ing. Jan Vrba, CSc., Zuna, I., Peschke, P., Poušek, L., Lapeš, M., Ing. Ladislav Oppl, Ph.D., Novák, P.
  • Publikace: The 10th Conference on Microwave Techniques COMITE 1999. Prague: Czechoslovakia Section IEEE, 1999. pp. 197-199. ISBN 80-902417-3-5.
  • Rok: 1999

NMR Compatibility of Microwave Hyperthermia Applicators

  • Autoři: prof. Ing. Jan Vrba, CSc., Zuna, I., Peschke, P., Schad, L., Poušek, L., Lapeš, M., Ing. Ladislav Oppl, Ph.D., Novák, P.
  • Publikace: IPEM Meetings: Microwave and RF Fields - Medical Application and Safety Related Issues Meeting. York: The Institute of Physics and Engineering in Medicine, 1999. pp. 47-48.
  • Rok: 1999

Technical Aspects of Microwave Thermotherapy

Hyperthermia in Clinical Practice

  • Autoři: Ing. Ladislav Oppl, Ph.D., Kvěch, J.
  • Publikace: Biological Systems and Electromagnetic Field. Praha: ČVUT FEL, Katedra elektromagnetického pole, 1998, pp. 38-41. ISBN 80-01-01821-0.
  • Rok: 1998

Microwave Measurements of Biological Tissue Properties

  • Autoři: Ing. Ladislav Oppl, Ph.D.,
  • Publikace: Workshop 98. Praha: České vysoké učení technické v Praze, 1998, pp. 879-880.
  • Rok: 1998

Technical Aspects of Microwave Hyperthermia

Technical Aspects of Microwave Thermotherapy

  • Autoři: prof. Ing. Jan Vrba, CSc., Lapeš, M., Kouba, O., Ing. Ladislav Oppl, Ph.D., Hlaváč, R., Saliba, G., Smítka, J.
  • Publikace: Biological Systems and Electromagnetic Field. Praha: ČVUT FEL, Katedra elektromagnetického pole, 1998, pp. 51. ISBN 80-01-01821-0.
  • Rok: 1998

Development and Evaluation of New Microwave Hyperthermia Applicators

  • Autoři: prof. Ing. Jan Vrba, CSc., Franconi, C., Lapeš, M., Voleš, O., Ing. Ladislav Oppl, Ph.D., Bíža, S., Hlaváč, R.
  • Publikace: Biologické systémy a elektromagnetické pole. Praha: ČVUT FEL, Katedra elektromagnetického pole, 1997. pp. 47-48. ISBN 80-01-01660-9.
  • Rok: 1997

Development and Evaluation of New Microwave Hyperthermia Applicators

  • Autoři: prof. Ing. Jan Vrba, CSc., Hlaváč, R., Franconi, C., Lapeš, M., Voleš, O., Ing. Ladislav Oppl, Ph.D., Bíža, S.
  • Publikace: Biologické systémy a elektromagnetické pole. Praha: ČVUT FEL, Katedra elektromagnetického pole, 1997, pp. 47-49. ISBN 80-01-01660-9.
  • Rok: 1997

Měření dielektrických vlastností biologické tkáně

  • Autoři: Ing. Ladislav Oppl, Ph.D.,
  • Publikace: Biologické systémy a elektromagnetické pole. Praha: ČVUT FEL, Katedra elektromagnetického pole, 1997. pp. 32-34. ISBN 80-01-01660-9.
  • Rok: 1997

Měření dielektrických vlastností biologické tkáně

  • Autoři: Ing. Ladislav Oppl, Ph.D.,
  • Publikace: Biologické systémy a elektromagnetické pole. Praha: ČVUT FEL, Katedra elektromagnetického pole, 1997. pp. 32-34. ISBN 80-01-01660-9.
  • Rok: 1997

On the Measurement of Material Dielectric Properties

Měření dielektrických parametrů biologické tkáně

  • Autoři: Ing. Ladislav Oppl, Ph.D.,
  • Publikace: Poster 1996. Praha: České vysoké učení technické v Praze, Fakulta elektrotechnická, 1996. pp. 48.
  • Rok: 1996

Waveguide Applicator Properties Near to the Cut-Off Frequency

Evaluation of Intracavitary Microwave Applicators for Hyperthermia Cancer Treatment

Intracavitary Hypermia Applicators for Cancer Treatment

Microwave Hyperthermia Cancer Treatment: Apparaturs for 3D Measurement of Applicator SAR Distribution

3D Modelling of Human Exposures to EM Fields

  • Autoři: prof. Ing. Jan Vrba, CSc., Bíža, S., Lapeš, M., Vokurka, J., Ing. Ladislav Oppl, Ph.D., Voleš, O.
  • Publikace: International Symposium on Electromagnetic Compatibility. Abstract Book. Roma: University of Rome, Faculty of Engineering, 1994. pp. 23-25.
  • Rok: 1994

Intracavitary Applicators for Microwave Thermotherapy

Microwave Applicators for Hyperthermia Cancer Treatment: Apparatus for 3D Measurements of SAR Distribution

The Use of Water Phantom for 3D SAR Measurements

Biological Effects of Electromagnetic Field

Za stránku zodpovídá: Ing. Mgr. Radovan Suk