A new model of numerical dosimetry is proposed for RF exposure. First, the specific absorption rate (SAR) is computed. Then, the heat transfer governed by the bio-heat equation with convection term is numerically solved by a finite-element method (FEM) procedure considering the discrete vascular model of the perfused tissue. By some manipulations of the FEM equations and by generating an adequate FEM mesh, it is possible to solve the thermal convection in the blood vessels considering a one-dimensional domain embedded in the fully three-dimensional domain where only the thermal diffusion is analyzed.
Finite-Element Analysis of Temperature Increase in Vascularized Biological Tissues Exposed to RF Sources / V., De Santis; M., Feliziani; Maradei, Francescaromana; C., Buccella. - In: IEEE TRANSACTIONS ON MAGNETICS. - ISSN 0018-9464. - STAMPA. - 45:3(2009), pp. 1682-1685. (Intervento presentato al convegno 13th Biennial IEEE Conference on Electromagnetic Field Computation tenutosi a Athens, GREECE nel MAY 11-15, 2008) [10.1109/tmag.2009.2012781].
Finite-Element Analysis of Temperature Increase in Vascularized Biological Tissues Exposed to RF Sources
MARADEI, Francescaromana;
2009
Abstract
A new model of numerical dosimetry is proposed for RF exposure. First, the specific absorption rate (SAR) is computed. Then, the heat transfer governed by the bio-heat equation with convection term is numerically solved by a finite-element method (FEM) procedure considering the discrete vascular model of the perfused tissue. By some manipulations of the FEM equations and by generating an adequate FEM mesh, it is possible to solve the thermal convection in the blood vessels considering a one-dimensional domain embedded in the fully three-dimensional domain where only the thermal diffusion is analyzed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
