A.V. Nascimento's research while affiliated with Hospital do Servidor Municipal de São Paulo and other places
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Publications (6)
The efficiency of systems for radiographic images acquisition, as well as for computer aided diagnosis (CAD) is verified currently by means of phantoms or images selected by the researcher, compromising the reliability of the evaluation. In this work it is presented an algorithm that simulates the integrated kidney structures. The structures are bu...
In this work it is presented an algorithm that simulates the interstitial patterns and their radiographic images, based on integrated thoracic and pulmonary structures. The thoracic box is modeled using control points and the dimensions of airways and arteries branches are calculated based on the flow distribution from parents to sibling branches....
In this work is presented an algorithm that simulates bronquiectasias and their radiographic images, based on integrated thoracic and pulmonary structures. The thoracic box is modeled using control points and the dimensions of airways and arteries branches are calculated based on the flow distribution from parents to sibling branches. The inflammat...
This work consisted of the development and implementation of an algorithm by using "C" language that simulates the airway tree and their radiographic images as well as pulmonary arteries. Calculations were made of the branching of these structures, based on the distribution of the flow from the parent to the daughter branches, which were represente...
Resumo -Neste trabalho é apresentado um algoritmo que simula as doenças intersticiais pulmonares, com recursos para representar tanto as variações anatômicas, quanto suas imagens radiográficas em função das diversas técnicas de exposição. As estruturas torácicas foram determinadas a partir de pontos de controle e as ramificações pulmonares foram ca...
Citations
... No entanto, os modelos computacionais pulmonares descritos na literatura especializada apresentam limitações, seja por não seguirem fielmente as particularidades anatômicas, resultando em estruturas com características visuais estranhas, [1], seja por não considerarem as variações anatômicas ou as particularidades tanto dos processos patológicos, quanto dos sistemas de aquisição de imagens, [2]. Uma versão anterior do nosso modelo, [3], mostrou-se mais representativa e mais versátil que os modelos encontrados na literatura, mas não incluía as patologias. Neste trabalho, representamos a caixa torácica, as vias aéreas pulmonares, as patologias intersticiais e as variações anatômicas tanto entre os indivíduos, quanto entre as técnicas radiológicas. ...
