Examination of the exciting condition for the high-temperature magnetic hyperthermia

Yukiko Sawaya, Nobutake Suzuki, Fumihiro Sato, Hidetoshi Matsuki, Setsuya Aiba, Tadakuni Sato

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


The soft-heating method is one of the hyperthemia. The heater that consists of thermosensitive ferrite is implanted into the body, and heated by a high-frequency magnetic field. This paper applies the "advanced" soft-heating method. A complex type of heater, composed of thermosensitive ferrite wound on a metallic ring, is created. This complex type of heater produces heat due to losses of hysteresis and inductive current. The effect of the exciting frequency on the heating value of a complex type of heater is examined. As a result, the area of 12×7 mm is heated over 60°C in phantom, in the condition of 6 mT-100 kHz. The heated area in vitro is confirmed, so a test in vivo is examined. The tumors of mice were heated to the point at which the tumor is necrotized.

Original languageEnglish
Pages (from-to)4161-4163
Number of pages3
JournalIEEE Transactions on Magnetics
Issue number10
Publication statusPublished - 2005 Oct


  • Exciting condition
  • Hyperthermia
  • Soft-heating method
  • Thermosensitive ferrite

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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