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Master's Dissertation
DOI
10.11606/D.18.2016.tde-07032016-112835
Document
Author
Full name
Leandro Alves Neves
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2001
Supervisor
Committee
Slaets, Annie France Frère (President)
Cestari, Idagene Aparecida
Cliquet Junior, Alberto
Title in Portuguese
Simulação computacional de uma estrutura anatômica - o pulmão - para processamento e controle de qualidade
Keywords in Portuguese
Estrutura pulmonar
Modelagem
Raios X
Simulação computacional
Abstract in Portuguese
Neste trabalho desenvolvemos um algoritmo em linguagem "C" que simula tanto as vias aéreas e suas imagens radiográficas quanto às artérias pulmonares. Calculamos as ramificações dessas estruturas a partir de distribuição de fluxo dos ramos pais para os ramos filhos e representamos por formas geométricas. Projetamos o algoritmo para representar as variações anatômicas existentes entre os indivíduos e simular as imagens da árvore brônquica com ou sem ramificações, com ou sem alvéolos. Para representar as variações anatômicas adotamos 2 modelos. O primeiro considera as dimensões morfológicas encontradas na literatura e o segundo aceita modificações dos seus parâmetros até encontrar um aspecto visual próximo a de uma anatomia específica. Nas simulações radiográficas, consideramos tecidos pulmonares genéricos e diferentes técnicas radiológicas. O algoritmo que desenvolvemos apresentou resultados superiores aos encontrados na literatura e tem a vantagem de simular imagens radiográficas.
Title in English
not available
Keywords in English
not available
Abstract in English
This work consisted of the development and implementation of an algorithm by using "C" language that simulates the air passages and their radiographic images as well as the pulmonary arteries. Calculations were made of the ramifications of these structures, based on the distribution of the flow from the parent to the offspring ramifications, which were represented geometrically. The algorithm was designed to represent the anatomical variations among the individual ramifications and to simulate the images of the bronchial tree with or without ramifications and with or without alveolus. Two models were adopted represent the anatomical variations. The first considers the morphological dimensions reported on in the literature, while the second accepts modifications of their parameters until a visual appearance resembling that of a specific anatomy is achieved. The radiographic simulations were based on generic lung tissue and on different radiological techniques. The algorithm developed here showed better results tham those found in the literature, with the added advantage of simulating radiographic images.
 
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Publishing Date
2016-03-07
 
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