Pulse Compression Favorable Linear Frequency Modulated Thermal Wave Imaging for the Diagnosis of Skin Lesions: A Numerical Study

Skin related problem such as skin rashes, allergy, blister, skin burns and skin lesions are rising at the faster pace due to change in the physiological conditions developed by harsh environmental conditions. In all these skin related conditions skin lesions has the higher concern for the various healthcare workers and researchers then that of other conditions. So, that a noninvasive diagnostic technique can be developed for the detection of skin lesions with accuracy in comparison to go for the invasive technique such as biopsy and x-ray-based techniques. Hence the current work involves non-invasive exploration of skin lesions and associated disorders by analyzing the temporal thermal-based responses and heat distribution patterns among the neighboring sub-surfaces and the layered depth observations for benign or malignant skin tissues. Here, the thermal distribution evaluations of three-dimensional skin-modeled surfaces are considered on the base of distinct thermophysical characteristics of the surface, metabolic heat generation rate, blood perfusion, and probing depths of the skin. The concerned parameters for analysis are examined within the native physiological range of the skin tissues and the corresponding changes in the surface temperatures are essentially measured using finite element-based model for linear frequency modulated thermal heat flux. This study authenticates the thermal flux-based examination of the skin lesions with the help of Linear Frequency Modulated Thermal Wave Imaging (LFMTWI) technique by considering correlation coefficient as a figure.