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

Abstract

Computed tomography (CT) is one of the most modern diagnostic imaging techniques that use X-rays, as it allows the analysis of various clinical pathologies precisely in a relatively short time. However, this radiological examination is one of the main causes of high doses of radiation 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 with the use of ionizing radiation. The theme addressed in the present bibliographical work becomes relevant because it provides opportunities for the deepening of several important physical concepts, since the computed tomography method covers a range of contents from the areas of optics and modern physics, such as electromagnetic waves , photoelectric effect, Compton effect, among others. In addition, this study is necessary because CT methods have contributed, since their inception, to the advancement of modern medicine by making use of 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 they influence the generation of the image, as well as its quality, considering the safety standards