Title :
Power deposition properties of a travelling-wave applicator for interstitial hyperthermia
Author :
Strickland, Peter C.
Author_Institution :
Dept. of Electron., Carleton Univ., Ottawa, Ont., Canada
Abstract :
An interstitial hyperthermia applicator is described that is capable of providing uniform heating over an extended range of depths. The applicator utilizes lossy two-wire transmission lines that are terminated in p-i-n diodes that may be biased on or off. A pair of these transmission lines within a single applicator allows a variety of symmetrical and asymmetrical patterns to be produced. Theoretical predictions of the applicator´s performance are provided that are based on empirically determined transmission line characteristics.
Keywords :
biomedical equipment; biothermics; radiation therapy; radiofrequency heating; asymmetrical patterns; empirically determined transmission line characteristics; interstitial hyperthermia; lossy 2-wire transmission lines; off bias; on bias; p-i-n diodes; power deposition properties; symmetrical patterns; therapeutic instrumentation; travelling-wave applicator; uniform heating; Applicators; Conductors; Heating; Hyperthermia; P-i-n diodes; Permittivity; Phased arrays; Power transmission lines; Propagation losses; Transmission line theory; Humans; Hyperthermia, Induced;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
