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Development of interstitial antennas for hyperthermic treatment of cancer

Research Project

Project/Area Number 04454295
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Radiation science
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

HIRAOKA Masahiro  Kyoto Univ.Dept.of Radiology Associate Prof., 医学部, 助教授 (70173218)

Co-Investigator(Kenkyū-buntansha) ITO Kouichi  Chiba Univ.Fac.of Engineering Associate Prof., 工学部, 助教授 (90108225)
ABE Mitsuyuki  Kyoto Univ.Fac.of Medicine Prof/., 医学部, 教授 (00025587)
NAGATA Yasushi  Kyoto Univ.Fac.of Medicine assist.Prof., 医学部, 助手 (10228033)
NISHIMURA Yasumasa  Kyoto Univ.Fac.of Medicine Lecturer, 医学部, 講師 (00218207)
増永 慎一郎  京都大学, 原子炉実験所, 助手 (80238914)
Project Period (FY) 1992 – 1994
Project Status Completed (Fiscal Year 1994)
Budget Amount *help
¥6,300,000 (Direct Cost: ¥6,300,000)
Fiscal Year 1994: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1993: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1992: ¥3,300,000 (Direct Cost: ¥3,300,000)
Keywordscancer treatment / hyperthermia / microwave / interstitial hyperthermia / anntena / electromagnetic wave / phantom / 温熱療法 / マイクロ波アンテナ
Research Abstract

We have developed a microwave coaxial ring-slot applicator for interstitial hyperthermia in cancer therapy. The applicator is co-axial slots antennas made of a 0.86 mm outer diameter coaxial cable, and is used at a frequency of 400-430 MHz microwave. Several ring slots, which radiate microwave power into the surrounding tissue, are placed at equidistant intervals along this cable on the outer conductors, and the tip of the coaxial cable is short-circuited to expand the heating area around the tip of the applicator. The antennas can be inserted into a 21 G plastic catheter and the SAR distribution along them can be changed by ajusting the parameters of the slots. Multiple coaxial slots are arranged at short intervals on the outer conductor of the cable. Each antenna is loaded into a thin plastic catheter and an array of the antennas is then inserted into a tumor.
The heating distributions characteristics of this applicator were investigated in the muscle-equivalent agar phantoms. The advantages of this applicator demonstrated were the relatively large haeting area and the relatively uniform heating area along the axis of the applicator. These advantages have been shown in animal experiments using the muscle and the implanted tumor. Histopathological examinations revealed massive coagulation necrosis of the tumors which were effectively heated with this applicater.
The applicator was designed to be used with a 430 MHz microwave hyperthermia system, so that the temperature measurement and temperature control system equipped with the system are also availabel for the interstitial hyperthermia.

Report

(4 results)
  • 1994 Annual Research Report   Final Research Report Summary
  • 1993 Annual Research Report
  • 1992 Annual Research Report
  • Research Products

    (32 results)

All Other

All Publications (32 results)

  • [Publications] Kikuchi,M.,et al: "Guide to the use of hyperthermia equipment l.Capacitively-coupled heating." Int.J.Hyperthermia. 9. 187-203 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Masunaga,S.,et al: "Phase I/II trial of preoperative thermo-raiotherapy in the treatment of urinary bladder cancer." Int.J.Hyperthermia. 10. 31-40 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Hiraoka,M.et al: "Site-specific phase I,II trial of hyperthermia at Kyoto University." Int.J.Hyperthermia. 10. 403-410 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Mitsumori,M.,etal: "Development of intraarterial hyperthermia using dextran magnetite complex." Int.J.Hyperthermia. 10. 785-794 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Hiraoka,M.et al: "Hyperthermia clinical trial in Japan." Biomed.Eng.Appl.Basis.Comm.6. 319-327 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Hiraoka,M.,et al: "Clinical evaluation of a 430 MHz microwave hyperthermia ststem with a lens applicator for cancer therapy.(In press)" Medical & Biological Engineering & Comp.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Hiraoka,M.,et al: "In Cancer Treatment by Hyperthermia,Radiation and Drugs" Matsuda,T., 397 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Hiraoka,M.,et al: "In Principles and practice of Thermoradiotherapy" Seegenschmiedt,M.H.Feesenden,P.Vernon,C.C.(In press),

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] kikuchi, M., et al.: "Guide to the use of hyperthermia euipment 1. Capacitively-coupled heating." Int.J.Hyperthermia. 9. 187-203 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Masunaga, S., et al.: "Phase I/II trial of preoperative thermoradiotherapy in the treatment of urinary bladder cancer." Int.J.Hyperthermia. 10. 31-40 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Hiraoka, M., et al.: "Site-specific phase I,II trial of hyperthermia at Kyoto University." Int.J.Hyperthermia. 10. 403-410 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Mitsumori, M., et al.: "Development of intraarteial hyperthermia using dextran magnetite complex." Int.J.Hyperthermia. 10. 785-794 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Hiraoka, M., et al.: "Hyperthermia clinical trial in Japan." Biomed.Eng.Appl.Basis.Comm.6. 319-327 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Hiraoka, M., et al.: "Clinical evaluation of a 430 MHz microwave hyperthermia system with a lens applicator for cancer therapy." Medical & Biological Engineering & Comp.(in Press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Hiraoka,M.,et al: "Clinical results of thermoradiotherapy of soft tissue tumors." Int.J.Hyperthermia. (In press).

    • Related Report
      1994 Annual Research Report
  • [Publications] Nagata,Y.,et al: "Clinical experiences in the thermoradiotherapy for advanced qastric cancer." Int.J.Hyperthermia. (In press).

    • Related Report
      1994 Annual Research Report
  • [Publications] Masunaga,S.,et al: "PhaseI/II trial of preoperative thermoradiotherapy in the treatment of urinary bladder cancer." Int.J.Hyperthermia. 10. 31-40 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Hiraoka,M.,et al: "Site-specific phase I,II trails of hyperthermia at Kyoto University." Int.J.Hyperthermia. 10. 403-410 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 奥野芳茂 他: "癌温熱治療法用マイクロ波組織内アンテナの開発とその臨床応用" INNERVISION. 9. 25- (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Hiraoka,M.,et al: "Hyperthermia clinical trials in Japan." Biomed.Eng.Appl.Basis Comm. 6. 319-327 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 平岡真寛: "電磁界の生体効果と計測" 高周波電磁界と生体-生体への影響, 350 (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] Hiraoka,M.,et al: "In Principles and Practice of Thermoradiotherapy" Thermoradiotherapy for upper abdominal tumors.(In press),

    • Related Report
      1994 Annual Research Report
  • [Publications] M.Hiraoka et al.: "The significance of intratumor low density on post-treatment CT as a parameter for tumor response to thermoradiotherapy" Cancer Treatment by Hyperthermia. 195-201 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] M.Takahashi et al.: "Clinical results of thermoradiotherapy for deep-seated tumors" Cancer Treatment by Hyperthermia,Radiation and Drugs. 229-240 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] M.Kikuchi et al.: "Guide to the use of hyperthermia equipment 2.Microwave heating" Int.J.Hyperthermia. 9. 187-203 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 伊藤 公一: "組織内加温用同軸スロットアンテナで構成した正六角形アレーアプリケータの加温特性" 電子情報通信学会 技術研究報告. AP93-117 (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] 伊藤 公一: "媒質境界を考慮したハイパーサーシア用同軸スロットアンテナのSAR分布の解析" 電子情報通信学会論文誌(B-II). (in press). (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] M.Hiraoka et al: "Regional Hyperthermia Combined with Radiotherapy in the Treatment of Lung Cnacers" Int.J.Radiat.Oncol.Biol.Phys.22. 1009-1014 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Y.Nishimura et al: "Hyperthermia Combined with Radiation Therapy for Primarily Unresectable and Recurrent Colorectal Cancer" Int.J.Radiat.Oncol.Biol.Phys.23. 759-768 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Furuya et al: "“A Practical improvement of Intersititial Hyperthemia using Coaxial-Slot Antenna"" 6th International Congress on Hyperthermic Oncology. 1. A26- (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] T.Terakawa et al: "“Experiments on Interstitial Applicator Made of Thin Coaxial Cable for Microwave Hyperthermia"" 日本ハイパーサーミア誌. 8. 107-114 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 志村 政留 他: "“組織内加温用同軸スロットアンテナで構成した正六角形アレーアプリケータの加温特性"" 日本ハイパーサーミア誌. 8. 115-125 (1992)

    • Related Report
      1992 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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