In non-invasive thermal diagnostics, accurate correlations between the thermal image on skin surface and interior human pathophysiology are often desired, which require general solutions for the bioheat equation. In this paper, a difference scheme for the Pennes equation with a space-dependent thermal physiological parameters and convective boundary condition on the top surface, was used to app...

The applications of mathematical simulations of tissue tem perature distributions in hyperthermia treatments are discussed in terms of four areas, comparative, prospective, concurrent, and retrospective thermal dosimetry. These four aspects of thermal dosimetry cover the range of hyperthermia applications of interest to clinicians, from comparative evaluation of compet itive heating modalities ...

Abstract The temperature distribution of human body tissues, when electromagnetic waves are applied, is studied with the help bioheat equation, which characterised by several thermal parameters, such as conductivity, perfusion frequency or metabolic heat. There also electrical conductivity and dielectric constant. Besides, therapy applied power should be considered. If values all these paramete...

This work aimed to elucidate the primary factors which affect skin temperature. A simple thermophysical model of skin, accounts for radiative, convective, and evaporative heat losses, has been developed address it. The is based on skin’s morphology consists passive (nonviable tissue) active (viable layers. bioheat equation was solved these layers using realistic assumptions. It found that other...

The accuracy of the classical heat conduction model, known as Fourier’s law, is highly questioned, dealing with micro- and nanosystems biological tissues. In other words, results obtained from equations deviate available experimental data. It means that continuum diffusion equation insufficient inappropriate for modeling transport in these cases. There are several techniques non-Fourier conduct...

A comprehensive analysis of bioheat transport through a double layer and multilayer biological media is presented in this work. Analytical solutions have been developed for blood and tissue phase temperatures and overall heat exchange correlations, incorporating thermal conduction in tissue and vascular system, blood-tissue convective heat exchange, metabolic heat generation, and imposed heat f...

A series solution for a 2D bioheat Pennes conduction model with convective boundary conditions is established by using the classical Fourier method. To validate and compare results, a numerical method for constructing highly accurate numerical solutions is also derived and numerically illustrated. Both, the series solution and the proposed numerical method open interesting possibilities of appl...

Introduction High intensity focused ultrasound (HIFU) is considered a noninvasive and effective technique for tumor ablation. Frequency and acoustic power are the most effective parameters for temperature distribution and the extent of tissue damage. The aim of this study was to optimize the operating transducer parameters such as frequency and input power in order to acquire suitable temperatu...