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Advances in Target Conformal SAR Deposition for Hyperthermia Treatment Planning

The possibility of uniformly shaping the SAR deposition over a target area while avoiding normal tissue to be undesirably heated represents one of the main open challenges in hyperthermia treatment planning. This task is even more challenging when dealing with large targets generally characterized by irregular shapes. Two innovative SAR shaping strategies, aimed at addressing the above-mentioned need, have been recently proposed. These strategies take advantage from the use of more target points and are respectively based on two well-known focusing techniques. In this communication, both the approaches are firstly given under a common mathematical framework and then tested on anatomically and electromagnetically realistic phantoms.