Errors in the two-dimensional simulation of ferromagnetic implant hyperthermia.
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.
Chen
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ZP
Radiation Oncology Department, University of Arizona, Arizona Health Sciences Center, Tucson 85724.
Roemer
R B
RB
Cetas
T C
TC
D003198:Computer Simulation; D052203:Ferrosoferric Oxide; D006979:Hyperthermia, Induced / Q000379:methods*; D007501:Iron; D008962:Models, Theoretical; D010087:Oxides
D010087:Oxides; D007501:Iron; D052203:Ferrosoferric Oxide