Short communication: Errors in the two-dimensional simulation of ferromagnetic implant hyperthermia

Z.-P. Chen Radiation Oncology Department, University of Arizona, Arizona Health Sciences Center, Tucson, AZ, 85724, USA

R. B. Roemer Radiation Oncology Department, University of Arizona, Arizona Health Sciences Center, Tucson, AZ, 85724, USA; Aerospace & Mechanical Engineering Department, University of Arizona, Tucson, AZ, 85724, USA

T. C. Cetas Radiation Oncology Department, University of Arizona, Arizona Health Sciences Center, Tucson, AZ, 85724, USA

Abstract

An empirical power absorption formula developed by Haider et al. (1991) for thermally self-regulating nickel-silicon ferromagnetic seeds has been incorporated into a three-dimensional patient treatment planning programme to calculate the seed power absorption as a function of seed temperature. The programme has been used to evaluate systematically the accuracy of two-versus three-dimensional simulations for ferromagnetic implant hyperthermia. The results show that two-dimensional simulations can significantly overestimate temperatures. Consequently, three-dimensional simulations are necessary for accurate hyperthermia treatment planning.

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Short communication: Errors in the two-dimensional simulation of ferromagnetic implant hyperthermia

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Short communication: Errors in the two-dimensional simulation of ferromagnetic implant hyperthermia

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