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Radiofrequency (RF) ablation uses RF current to heat and kill cancer applied via an electrode inserted under image-guidance, and is in clinical use for tumors in liver, lung kidney, and bone. Mathematical models are frequently used to determine tissue temperature during RF ablation, but most prior models do not include accurate implementation of power control algorithms as are used in clinical devices...
There has been a growing need to advance the use of thermal ablation therapy as a minimally invasive technique in cancer management. Consequently, this study was undertaken to investigate the use of radiofrequency (RF) energy by developing and testing an economical and effective radiofrequency thermal probe that will effectively destroy volumes of pathological tumours by means of hyperthermia. The...
Using microscopic techniques the authors fabricated interstitial hyperthermia applicators having diameters of 0.20, 0.33 and 0.58 mm, which will fit through catheters of 30, 26 and 22 gauge, respectively. Existing commercial applicators having a diameter of 1.1 mm require 17-gauge catheters. The authors determine the energy deposition patterns (specific absorption rate) from measurements of the electric...
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