The examination of the excitation condition for the high temperature magnetic hyperthermia

Hyperthermia is a method of treatment that causes tumour necrosis by heating. In this paper the effects of the excitation frequency on the heating value of a complex heating element composed of thermosensitive ferrite wound by a metallic ring is studied. An implantable miniature magnetic device is inserted in the tumor while the heating element is excited by a magnetic field. Results show that a higher heating value can be obtained by lowering the magnetic flux density and by increasing the excitation frequency. The area of heating in vitro is confirmed in this paper. Future work will focus on the effect of hyperthermia in vivo.