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ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
NUMERICAL STUDY OF THE INFLUENCE OF DEPTH IN THE DETECTION OF BREAST TUMORS BY THERMAL IMPEDANCE
Submission Author:
Alexandre Miguel Costa Barcelos , MG
Co-Authors:
Alexandre Miguel Costa Barcelos, Gilmar Guimaraes, CLEUDMAR ARAÚJO, Gabriela Lima Menegaz
Presenter: Alexandre Miguel Costa Barcelos
doi://10.26678/ABCM.ENCIT2020.CIT20-0507
Abstract
Cancer is the term used to describe different types of diseases in which the abnormal growth of cells with invasive potential occurs. Breast cancer is one of the main causes of death for women worldwide, being the second type that most affects women in Brazil. Early detection of breast cancer is essential for reducing mortality. In this work, the finite element method was used to study the detection of 5 and 10 mm diameter tumors in a model with equivalent geometry and properties to the human breast using the thermal impedance method. This method consists of ratio between the variation of the surface temperature according to the application of an external heat flux. The detection of inclusions becomes possible due to the calculations of the damage metrics that are statistical parameters capable of numerically represent the different measurements, without and with the presence of the tumor. Tumors of 5 mm and 10 mm in diameter were positioned at three different depths of the breast. Thermal impedances in these conditions were calculated and damage metrics were obtained. Under the conditions considered in the numerical models analyzed, tumors were detected in all depths of the cases analyzed by the thermal impedance method.
Keywords
Thermal Impedance, detection, Breast tumor, Finite Element Method (MEF)
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