areas raises the specter of delayed oncogenesis in neighboring soft tissue and has been implicated in the constriction of vessels at the margins of irradiated stents -the so-called "candy wrapper" or "edge" effect. These issues must be resolved with carefully crafted clinical trials, the results of which could justify the evidence-based expansion of indications for a promising therapy for coronary and other vascular disease. Nevertheless, at this time, brachytherapy appears to provide a valuable addition to the armamentarium of the interventional cardiologist.