Characterization of a Tranceiving Antenna Concept for Microwave Heating and Thermometry of Superficial Tumors - Abstract

A tranceiving printed circuit antenna concept, intended to be used for simultaneous heating and thermometry in hyperthermia therapy, is introduced and experimentally investigated in a liquid phantom. Two important questions have been addressed. First, optimum antenna design related to the depth-of-sensitivity and lateral beam width for microwave radiometry detection of subcutaneous objects. Second, optimum antenna design aimed at producing large area hyperthermia at superficial depth. Due to the nature of the problem, it is not possible to optimize one antenna configuration design to meet both these criteria. Instead an integrated dual antenna concept, consisting of one transmitting and one receiving antenna, is proposed. By means of a scanning electric field probe the radiated electric field distribution (E2) was measured for the concept in a homogeneous lossy medium. The measurements were further parameterized in terms of four performance indices defined in this work. A microstrip spiral antenna is show...

[1]  J. V. D. Velde,et al.  Improved recognition of thermal structures by microwave radiometry , 1984 .

[2]  J.J.H. Wang,et al.  Design of multioctave spiral-mode microstrip antennas , 1991 .

[3]  Robin L. Anderson,et al.  Hyperthermia in cancer therapy: current status , 1990, The Medical journal of Australia.

[4]  J. Fabre,et al.  Non-invasive microwave multifrequency radiometry used in microwave hyperthermia for bidimensional reconstruction of temperature patterns. , 1993, International journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group.

[5]  B. Bocquet,et al.  Microwave radiometry for non-invasive thermometry , 1987 .

[6]  R S Cox,et al.  Thermoradiotherapy for residual microscopic cancer: elective or post-excisional hyperthermia and radiation therapy in the management of local-regional recurrent breast cancer. , 1992, International journal of radiation oncology, biology, physics.

[7]  M. Chive,et al.  Microstrip microslot antennas for biomedical applications: frequency analysis of different parameters of this type of applicator , 1985 .

[8]  T. Samulski,et al.  Spiral microstrip hyperthermia applicators: technical design and clinical performance. , 1990, International journal of radiation oncology, biology, physics.

[9]  G. Giaux,et al.  Microwave hyperthermia controlled by microwave radiometry: technical aspects and first clinical results. , 1984, The Journal of microwave power.

[10]  P. Fessenden,et al.  Body conformable 915 MHz microstrip array applicators for large surface area hyperthermia , 1992, IEEE Transactions on Biomedical Engineering.

[11]  J. B. Leonard,et al.  Depth of Penetration of Fields from Rectangular Apertures Into Lossy Media (Short Paper) , 1987 .

[12]  F. Montecchia,et al.  Microstrip-antenna design for hyperthermia treatment of superficial tumors , 1992, IEEE Transactions on Biomedical Engineering.

[13]  R. Seip,et al.  Noninvasive estimation of tissue temperature response to heating fields using diagnostic ultrasound , 1995, IEEE Transactions on Biomedical Engineering.

[14]  Toshifumi Sugiura,et al.  Retrieval of temperature-depth profiles in biological objects from multi-frequency microwave radiometric data , 1993 .

[15]  P. Hall,et al.  Handbook of microstrip antennas , 1989 .

[16]  Henry Jasik,et al.  Antenna engineering handbook , 1961 .

[17]  R L Magin,et al.  Noninvasive microwave phased arrays for local hyperthermia: a review. , 1989, International journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group.

[18]  K. Foster,et al.  Microwave radiometry in living tissue: what does it measure? , 1992, IEEE Transactions on Biomedical Engineering.

[19]  C. Durney,et al.  Hyperthermia production for cancer therapy: a review of fundamentals and methods. , 1981, The Journal of microwave power.

[20]  Fred E. Gardiol,et al.  Broadband Patch Antennas , 1995 .

[21]  M. A. Stuchly,et al.  A New Microstrip Radiator For Medical Applications , 1980 .

[22]  Y Nagata,et al.  Clinical results of thermoradiotherapy for locally advanced and/or recurrent breast cancer--comparison of results with radiotherapy alone. , 1990, International journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group.

[23]  M.V. Prior,et al.  The use of a current sheet applicator array for superficial hyperthermia: incoherent versus coherent operation , 1995, IEEE Transactions on Biomedical Engineering.

[24]  D. Zutter,et al.  Power deposition of a microstrip applicator radiating into a layered biological structure , 1988 .

[25]  K D Paulsen,et al.  Temperature field estimation using electrical impedance profiling methods. II. Experimental system description and phantom results. , 1994, International journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group.

[26]  A. H. Barrett,et al.  Subcutaneous temperatures: a method of noninvasive sensing , 1975, Science.