Analysis of radiative signals from normal and malignant human skins subjected to a short-pulse laser

Thermal Analysis of the Increasing Subcutaneous Fat Thickness Within the Human Skin—A Numerical Study

“…In general, complete thermal equilibrium is considered in most of the cases [9,24], i.e., j eq ¼ 0, and the same has been considered in the present work. It is to be noted that the continuum bioheat model, i.e., the Pennes model, is suitable for estimation of temperature distribution in vascularized tissue with thermally insignificant vessels [21]. Earlier study [15] on skin suggests that human skin is composed of thin vesicular=avascular layers, and thus the Pennes model is well suited for thermal analysis of the skin.…”

“…In all these studies [8,9,15,18] mathematical modeling of the superficial skin has been carried out by considering the Pennes bioheat model. An extensive literature review of various numerical studies on the skin [8,9,15,[18][19][20][21] reveals that the thermal analysis of varying fat thickness underneath the human skin and its characterization using an active mode of thermal imaging technique are scarce. Hence, the present work performs a numerical study using the Pennes bioheat model [22] to determine the thermal response of the skin with increasing fat thickness only.…”

Estimation of radiative parameters in participating media using shuffled frog leaping algorithm

“…Lasers with pulse durations of pico-to femto-seconds were utilized to investigate the properties of scattering and absorbing media in optical tomography, remote sensing, and combustion product analysis [1,2]. The analysis of time-resolved optical signals is important for the biomedical imaging and probing applications involving detection of tumors in tissues [3,4]. Such studies are critical for predicting the optical properties of tissues and inhomogeneity tumors.…”

Suitability of frequency modulated thermal wave imaging for skin cancer detection—A theoretical prediction

“…In the current clinical settings and research facilities many conventional and state-of-the-art non-invasive modalities are explored for the detection and the differentiation of skin cancer, viz., terahertz pulse imaging (Woodward et al, 2002), reflectance mode short-pulse laser detection method (Bhowmik et al, 2014a), thermal imaging (Centigul and Hermann, 2011;Bonmarin and Le Gal, 2014a;Bhowmik et al, 2014b) and many more (Psaty and Halpern, 2009). In the recent years, the use of thermal imaging techniques for the detection and the differentiation of skin cancer stages have gained exceptional interest.…”