Um estudo dos parâmetros físicos envolvidos na formação de imagens radiográficas em tomografias computadorizadas

Abstract

Computed tomography (CT) is one of the most modern imaging diagnostic techniques that use X-rays, as it enables the analysis of various clinical pathologies accurately in a relatively short time. However, this radiological examination is one of the main causes of high radiation doses in patients and health professionals, due to the lack of knowledge on the part of these professionals about the physical principles related to image quality within the safety standards for the use of ionizing radiation. The topic addressed in this bibliographic work is relevant because it provides an opportunity to deepen the understanding of several important physical concepts, since the computed tomography method covers a range of content from the areas of optics and modern physics, such as electromagnetic waves, the photoelectric effect, the Compton effect, among others. Furthermore, this study is necessary because CT methods have contributed, since their creation, to the advancement of modern medicine by using sophisticated techniques that mainly combine physical principles and advanced computing. In this sense, this work aims to discuss the physical parameters involved in the formation of images in computed tomography, seeking to clarify how these influence the generation of the image, as well as its quality considering safety standards