Výsledky vyhledávání - "Rafael A. B. de Queiroz"

Akademický článek

A Hybrid Model for Cardiac Perfusion: Coupling a Discrete Coronary Arterial Tree Model with a Continuous Porous-Media Flow Model of the Myocardium

Autor: João R. Alves, Lucas A. Berg, Evandro D. Gaio, Bernardo M. Rocha, Rafael A. B. de Queiroz, Rodrigo W. dos Santos

Publikováno v: Entropy, Vol 25, Iss 8, p 1229 (2023)

This paper presents a novel hybrid approach for the computational modeling of cardiac perfusion, combining a discrete model of the coronary arterial tree with a continuous porous-media flow model of the myocardium. The constructive constrained optimi

Externí odkaz: https://doaj.org/article/2bd1e6b301a94efd88732b3b0937c2e2

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Akademický článek

Simulation of the Perfusion of Contrast Agent Used in Cardiac Magnetic Resonance: A Step Toward Non-invasive Cardiac Perfusion Quantification

Autor: João R. Alves, Rafael A. B. de Queiroz, Markus Bär, Rodrigo W. dos Santos

Publikováno v: Frontiers in Physiology, Vol 10 (2019)

This work presents a new mathematical model to describe cardiac perfusion in the myocardium as acquired by cardiac magnetic resonance (CMR) perfusion exams. The combination of first pass (or contrast-enhanced CMR) and late enhancement CMR is a widely

Externí odkaz: https://doaj.org/article/4516884ec1d94a27b11e33f6b2dac0b7

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Um algoritmo baseado em otimização para construção de modelos de árvores arteriais com nexo em hemodinâmica computacional

Autor: Patrícia F. de B. Anjos, Rodrigo W. dos Santos, Rafael A. B. de Queiroz

Publikováno v: Anais Estendidos do XXII Simpósio Brasileiro de Computação Aplicada à Saúde (SBCAS 2022).

A modelagem computacional do escoamento sanguíneo em árvores arteriais do sistema circulatório ajuda a ganhar entendimento deste complexo sistema, o que pode auxiliar no tratamento de doenças vasculares. Para realizar esta modelagem, a construç�

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0391e903f36c84d04f7854dce3e3b070
https://doi.org/10.5753/sbcas_estendido.2022.222416

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Automatic Construction of Vascular Arteriovenous Tree Geometric Model

Autor: Rafael A. B. de Queiroz, Luiz C. M. de Aquino

Publikováno v: Proceeding Series of the Brazilian Society of Computational and Applied Mathematics.

We propose an algorithm based on the computational method of Constrained Constructive Optimization for construction of a geometric model of vascular arteriovenous tree. It uses physiological conditions for pressure and flow while minimizing the total

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c0f66183e70ea9c335e1b73972b3dadd
https://doi.org/10.5540/03.2018.006.02.0257

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