Abstract
The absorption of electromagnetic energy in tissue is determined by many factors. Among them are amplitude, frequency, duration and polarization of applied fields; dielectric properties, size, geometry, and depth of tissues; size and shape of applicator; as well as spacing or coupling between tissue and applicator. Therefore, in order to apply the penetrating microwave or RF energy for tissue heating, measurements of energy absorption in tissues are required for effective treatment in cancer hyperthermia. Phantom materials with dielectric properties similar to those of real tissues have been used for electromagnetic heating studies, either for heating pattern evaluations in laboratory or as bolus materials for better energy coupling during treatment. When used as a bolus, the dielectric property need not be the same as that of the real tissue. There is also a need for dynamic phantoms including blood perfusion. Cetas (1982b) gave a few examples of dynamic phantoms. However, since many limitations exist, this subject will not be elaborated here.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
