Search Results - "Otávio Murta Júnior, Luiz"

Relationship between microvascular changes, autonomic denervation, and myocardial fibrosis in Chagas cardiomyopathy: Evaluation by MRI and SPECT imaging by Barizon, Gustavo Canavaci, Simões, Marcus Vinicius, Schmidt, André, Gadioli, Leonardo Pippa, Murta Junior, Luiz Otávio

“…The relationship between microvasculopathy, autonomic denervation, and myocardial fibrosis, in Chagas cardiomyopathy is incompletely understood. The aim of…”
Get full text

Automatic Diabetes Detection from Histological Images of Rats Phrenic Nerve Using Two-Dimensional Sample Entropy by da Silva Senra Filho, Antonio Carlos, Duque, Juliano Jinzenji, Silva, Luiz Eduardo Virgilio, Felipe, Joaquim Cesar, Sassoli Fazan, Valéria Paula, Junior, Luiz Otávio Murta

“…In microscopy, morphological characteristic of the axon are the most common features assessed in histological images of nerves. Although morphometric indexes…”
Get full text

Assessing biological self-organization patterns using statistical complexity characteristics: a tool for diffusion tensor imaging analysis by da S Senra Filho, Antonio Carlos, Murta Junior, Luiz Otávio, Monteiro Paschoal, André

“…Diffusion-weighted imaging (DWI) and diffusion tensor imaging (DTI) are well-known and powerful imaging techniques for MRI. Although DTI evaluation has evolved…”
Get full text

Videodensitometric analysis of advanced carotid plaque: correlation with MMP-9 and TIMP-1 expression by Baroncini, Liz Andréa V, Filho Pazin, Antonio, Murta, Jr, Luiz Otávio, Nakao, Lia S, Ramos, Simone G, Précoma, Dalton B

“…Matrix metalloproteinase-9 (MMP-9) and tissue inhibitor of MMP (TIMP) promote derangement of the extracellular matrix, which is ultimately reflected in plaque…”
Get full text

Multiscale entropy-based methods for heart rate variability complexity analysis by Silva, Luiz Eduardo Virgilio, Cabella, Brenno Caetano Troca, Neves, Ubiraci Pereira da Costa, Murta Junior, Luiz Otavio

“…Physiologic complexity is an important concept to characterize time series from biological systems, which associated to multiscale analysis can contribute to…”
Get full text

Fractal dimension in quantifying the degree of myocardial cellular rejection after cardiac transplantation by Moreira, Roberto Douglas, Moriel, Antonio Roberto, Murta Junior, Luiz Otávio, Neves, Leandro Alves, Godoy, Moacir Fernandes de

“…The term "Fractal" is derived from the Latin fractus meaning "irregular" or "broken" considering the observed structure with a non-integer dimension. There are…”
Get more information

Tsallis generalized entropy for Gaussian mixture model parameter estimation on brain segmentation application by Azimbagirad, Mehran, Murta Junior, Luiz Otavio

“…•An adaptive parameter estimation for statistical models.•High accuracy for specific parameter of GMM models.•Improve the segmentation approach for brain image…”
Get full text

Prediction of Radiation-Related Dental Caries Through PyRadiomics Features and Artificial Neural Network on Panoramic Radiography by De Araujo Faria, Vanessa, Azimbagirad, Mehran, Viani Arruda, Gustavo, Fernandes Pavoni, Juliana, Cezar Felipe, Joaquim, dos Santos, Elza Maria Carneiro Mendes Ferreira, Murta Junior, Luiz Otavio

“…The prediction and detection of radiation-related caries (RRC) are crucial to manage the side effects of the head and the neck cancer (HNC) radiotherapy (RT)…”
Get full text

Assessment of U-Net in the segmentation of short tracts: Transferring to clinical MRI routine by Konell, Hohana Gabriela, Junior, Luiz Otávio Murta, dos Santos, Antônio Carlos, Salmon, Carlos Ernesto Garrido

“…Accurately studying structural connectivity requires precise tract segmentation strategies. The U-Net network has been widely recognized for its exceptional…”
Get full text

Brain Logistic Segmentation (BLS): an efficient algorithm for whole-brain tissue segmentation in structural magnetic resonance imaging by Senra Filho, Antonio Carlos da Silva, Junior, Luiz Otávio Murta

“…Purpose Structural magnetic resonance imaging (MRI) data is essential for many neuroscience and clinical applications. The morphological features presented in…”
Get full text

Changes in the Complexity of Heart Rate Variability with Exercise Training Measured by Multiscale Entropy-Based Measurements by Fazan, Frederico, Brognara, Fernanda, Fazan Junior, Rubens, Murta Junior, Luiz, Virgilio Silva, Luiz

“…Quantifying complexity from heart rate variability (HRV) series is a challenging task, and multiscale entropy (MSE), along with its variants, has been…”
Get full text

Quantitative Estimation of the Nonstationary Behavior of Neural Spontaneous Activity by Joao-Batista Destro-Filho, Carlos-Alberto Estombelo-Montesco, Luiz-Otavio Murta-Junior, Sergio Martinoia, Michela Chiappalone, Suelen Moreira-Marques, Amanda F. Neves

“…The “stationarity time” (ST) of neuronal spontaneous activity signals of rat embryonic cortical cells, measured by means of a planar Multielectrode Array…”
Get full text

Brain volume refinement (BVeR): automatic correction tool as an alternative to manual intervention on brain segmentation by da Silva Senra Filho, Antonio Carlos, Simozo, Fabrício Henrique, Junior, Luiz Otávio Murta

“…Purpose In neuroimage studies, it is usual to set a sequence of image preprocessing steps to obtain a controlled data analysis. One of the possible data…”
Get full text

Isotropic anomalous filtering in Diffusion-Weighted Magnetic Resonance Imaging by Senra Filho, Antonio Carlos da S., Duque, Juliano Jinzenji, Murta, Luiz Otavio

“…Noise is inherent to Diffusion-Weighted Magnetic Resonance Imaging (DWI) and noise reduction methods are necessary. Although process based on classical…”
Get full text

Segmentation and Registration Methods in Short Axis Cardiac MRI and SPECT Images in Chagas Disease by Barizon, Gustavo Canavaci, Gadioli, Leonardo Pippa, Schmidt, Andre, Simoes, Marcus Vinicius, Murta, Luiz Otavio

“…The relationship between the myocardial tissue damage, myocardial perfusion defects and gaps in the autonomic innervations is still poorly understood. This…”
Get full text

Effects of Changing Blood Viscosity and Heart Rate on Vena Contracta Width as Evaluated by Color Doppler Flow Mapping. An In Vitro Study with a Pulsatile Flow Model by Schmidt, André, Da Silva Júnior, Telêmaco, Pazin-Filho, Antônio, Otávio Murta Júnior, Luiz, César Almeida-Filho, Oswaldo, Gallo-Júnior, Lourenço, Antonio Marin-Neto, José, Carlos Maciel, Benedito

“…Background: There is only limited knowledge on how the quantification of valvular regurgitation by color Doppler is affected by changing blood viscosity. This…”
Get full text

The impact of artifact correction methods of RR series on heart rate variability parameters by Rincon Soler, Anderson Ivan, Silva, Luiz Eduardo Virgilio, Fazan, Jr, Rubens, Murta Junior, Luiz Otavio

“…Heart rate variability (HRV) analysis is widely used to investigate the autonomic regulation of the cardiovascular system. HRV is often analyzed using RR time…”
Get full text

Dimensão fractal na quantificação do grau de rejeição celular miocárdica pós-transplante cardíaco by Moreira, Roberto Douglas, Moriel, Antonio Roberto, Murta Junior, Luiz Otávio, Neves, Leandro Alves, Godoy, Moacir Fernandes de

Get full text

Dimensão fractal na quantificação do grau de rejeição celular miocárdica pós-transplante cardíaco Fractal dimension in quantifying the degree of myocardial cellular rejection after cardiac transplantation by Roberto Douglas Moreira, Antonio Roberto Moriel, Luiz Otávio Murta Junior, Leandro Alves Neves, Moacir Fernandes de Godoy

“…INTRODUÇÃO: O termo "fractal" é derivado do latim fractus, que significa "irregular" ou "quebrado", considerando a estrutura observada como tendo uma dimensão…”
Get full text

Deep learning for automatic mandible segmentation on dental panoramic x-ray images by Machado, Leonardo Ferreira, Watanabe, Plauto Christopher Aranha, Rodrigues, Giovani Aantonio, Junior, Luiz Otavio Murta

“…Many studies in the last decades have correlated mandible bone structure with systemic diseases like osteoporosis. Mandible segmentation, as well as…”
Get more information