Abstract: A method of treating a patient by positioning an implant within a patient, delivering a first therapeutic modality from the implant to the patient, and activating the implant to deliver a second therapeutic modality to the patient, such as by exposing the implant to a magnetic field, is provided. The implant preferably includes a ferromagnetic core, such as a palladium-cobalt alloy. The implant may also include an isotope layer, and an outer layer substantially covering the isotope layer. In one application, the implant enables thermal ablation following unsuccessful brachytherapy, such as in the prostate.