The primary goal of this paper is to create a new fractional boundary element method (BEM) model for bio-thermomechanical problems in functionally graded anisotropic (FGA) nonlinear viscoelastic soft tissues. governing equations are briefly presented, including the dual-phase-lag (DPL) bioheat and Biot’s model. more complex shapes tissues can be handled by method, which also avoids need interio...

The numerical calculations including voxel human model with an anatomical structure for electromagnetic field and temperature rise induced by electromagnetic energy absorption have been widely investigated over the past dozen years or so. This paper presents the computational electromagnetic dosimetry inside an anatomically based pregnant woman models exposed to electromagnetic wave during magn...

High Intensity Focused Ultrasound (HIFU) has been emerging as a new and effective modality in non-invasive thermal ablation for cancers and solid tumours. Although a theoretical model is available for calculating thermal field and the consequent lesion production, its computation is too time-consuming (~ 1 day) for HIFU treatment planning on the site. In this study, several approximations were ...

In magnetic nanoparticle hyperthermia treatment, the ideal objective is to destroy all tumor cells without any damage to neighboring normal tissues. Thus, the temperature distribution in cancerous tissue and also surrounding healthy tissues should become closer to the desired distribution. In this paper, the temperature distribution is estimated by using a numerical scheme to solve the Penne’s ...

In this paper, an integrated and manifold study of the combined electromagnetic and thermal effects, caused by human exposure to microwave radiation is carried out. In essence, we numerically calculate the amount of electromagnetic power absorbed by biological tissues for various exposure conditions and types of emitting sources, utilizing a detailed model of the human head. The severity of the...

In this paper, the Specific Absorption Rate (SAR) distribution in a human head irradiated by an obliquely incident electromagnetic plane wave is studied. A simple planar multi-layered structure is used to model the human head. Moreover, the steady state thermal elevation distribution is calculated by solving the bioheat equation using the finite difference time domain (FDTD) method. Both types ...

We compare three different strategies for the modelling of blood-perfusion in large vessels in a well known mathematical model for the simulation of radio-frequency ablation of tumors. The first approach models the perfusion with a heat-sink on the right hand side of the bioheat-transfer equation, the second approach considers the temperature to be fixed to the body-temperature and thus sets a ...

The Weinbaum-Jiji equation can be applied to situations where: 1) the vascular anatomy is know; 2) the blood velocities are known; 3) the effective modeling volume includes many vessels; and 4) the vessel equilibration length is small compared to the actual length of the vessel. These criteria are satisfied in the situation where steady-state heated thermistors are placed in the kidney cortex. ...

The current paper is dealing with the thermal reaction and response of skin tissue subjected to a constant heat flux due thermo-electrical shock on bounding plane. dual-phase-lag bio conduction equation based Tzou model has been applied solved in Laplace transform domain by using direct method. numerical inversions transform, solution obtained. thermos-electrical for small value time considered...

In this study, a new theoretical framework was developed to investigate temperature variations along countercurrent SAV blood vessels from 300 to 1000 microm diameter in skeletal muscle. Vessels of this size lie outside the range of validity of the Weinbaum-Jiji bioheat equation and, heretofore, have been treated using discrete numerical methods. A new tissue cylinder surrounding these vessel p...