Výsledky vyhledávání - "Marcio Alves de Oliveira"

Monte Carlo derivation of filtered tungsten anode X-ray spectra for dose computation in digital mammography

Autor: Bruno Beraldo Oliveira, Maria Helena Araújo Teixeira, Lucas Paixão, Carolina Viloria, Marcio Alves de Oliveira, Maria do Socorro Nogueira

Publikováno v: Radiologia Brasileira v.48 n.6 2015
Radiologia Brasileira
Colégio Brasileiro de Radiologia e Diagnóstico por Imagem (CBR)
instacron:CBR
Radiologia Brasileira, Volume: 48, Issue: 6, Pages: 363-367, Published: DEC 2015
Radiologia Brasileira, Vol 48, Iss 6, Pp 363-367 (2015)

Objective: Derive filtered tungsten X-ray spectra used in digital mammography systems by means of Monte Carlo simulations. Materials and Methods: Filtered spectra for rhodium filter were obtained for tube potentials between 26 and 32 kV. The half-val

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff2f5e4e6ffc15ffd9e0bfb73c8fee49
https://doi.org/10.1590/0100-3984.2014.0108

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Dosimetry and image quality in digital mammography facilities in the State of Minas Gerais, Brazil

Autor: Bruno Beraldo Oliveira, Maria do Socorro Nogueira, Sabrina Donato da Silva, G. S. Joana, Marcio Alves de Oliveira, Fernando Leyton

Publikováno v: Radiation Physics and Chemistry. 116:292-299

According to the National Register of Health Care Facilities (CNES), there are approximately 477 mammography systems operating in the state of Minas Gerais, Brazil, of which an estimated 200 are digital apparatus using mainly computerized radiography

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6b32200967c3cccb9c8ba852fe4ba16b
https://doi.org/10.1016/j.radphyschem.2015.05.024

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Breast internal dose measurements in a physical thoracic phantom

Autor: Sabrina Donato da Silva, Humberto Galvão Dias, Luciana Batista Nogueira, André Lima Souza Castro, Marcio Alves de Oliveira, Tarcísio Passos Ribeiro de Campos

Publikováno v: Scientia Plena. 13

Radiotherapy is a cancer treatment intended to deposit the entire prescribed dose homogeneously into a target volume in order to eliminate the tumor and to spare the surrounding healthy tissues. This paper aimed to provide a dosimetric comparison bet

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fa2d9471c4564cf9647f69928585f241
https://doi.org/10.14808/sci.plena.2017.067501

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Prevalência de déficits motores e desordem coordenativa desenvolvimental em crianças da região Sul do Brasil Prevalencia de déficits motores y trastorno coordinativo de desarrollo en niños de la región Sur de Brasil Prevalence of motor deficits and developmental coordination disorders in children from South Brazil

Autor: Nadia Cristina Valentini, Mônia Tainá C. Coutinho, Simone Maria Pansera, Viviane Aparecida P. dos Santos, José Luiz L. Vieira, Maria Helena Ramalho, Marcio Alves de Oliveira

Publikováno v: Revista Paulista de Pediatria, Vol 30, Iss 3, Pp 377-384 (2012)

OBJETIVO: Investigar a prevalência de provável desordem coordenativa desenvolvimental e de seu risco e o desenvolvimento típico em meninos e meninas, com quatro a 12 anos de idade. MÉTODOS: Foram avaliadas 1.587 crianças da região Sul do Brasil

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doajarticles::1af611d3a1471f89733e32a60ab67016
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-05822012000300011

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Assessment of glandular dose and image quality in mammography using computerised radiography employing a polymethylmetacrilate breast simulator

Autor: Priscila do Carmo Santana, Peterson Lima Squair, Danielle Soares Gomes, Marcelino Vicente A. Dantas, Marcio Alves de Oliveira, Maria do Socorro Nogueira

Publikováno v: Radiation Measurements. 46:2081-2085

In Brazil there are around 600 mammography equipment with CR system. Taking into account the quality of image is essential to evaluate the mean glandular dose so you can optimize the radiation protection of patients evaluated with this type of system

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3340d591b105bde4692b028658a7b4c9
https://doi.org/10.1016/j.radmeas.2011.06.015

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Strength and isometric torque control in individuals with Parkinson’s disease

Autor: Marcio Alves, Oliveira, Marcio Alves, de Oliveira, Ana Melissa, Rodrigues, Raphael Maciel Silva, Caballero, Raphael Maciel, da Silva Caballero, Ricardo Demetrio, Petersen, Ricardo Demetrio, de Souza Petersen, Jae Kun, Shim

Publikováno v: Experimental Brain Research. 184:445-450

It has been previously reported that patients with Parkinson's disease (PD) struggle with fine adjustments of finger forces while manipulating an object. However, impairments in everyday activities can not only be attributed to difficulties with the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a1b16b46f7fca311eacd9b09c88c42b9
https://doi.org/10.1007/s00221-007-1212-9

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Dosimetry and image quality assessment in a direct radiography system

Autor: Maria do Socorro Nogueira, Lucas Paixão, Bruno Beraldo Oliveira, Marcio Alves de Oliveira, Maria Helena Araújo Teixeira

Publikováno v: Radiologia Brasileira, Volume: 47, Issue: 6, Pages: 361-367, Published: DEC 2014
Radiologia Brasileira, Vol 47, Iss 6, Pp 361-367 (2014)
Radiologia Brasileira v.47 n.6 2014
Radiologia Brasileira
Colégio Brasileiro de Radiologia e Diagnóstico por Imagem (CBR)
instacron:CBR

Objetivo: Avaliar a dose glandular média utilizando um detector de estado sólido e a qualidade da imagem de um sistema de radiografia direta a partir de objetos simuladores. Materiais e Métodos: Irradiações foram realizadas utilizando o controle

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bcec8822dc21373d6c9ce6d90a62a93f
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-39842014000600013&lng=en&tlng=en

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Dosimetry and image quality assessment in a direct radiography system

Autor: Bruno Beraldo, Oliveira, Marcio Alves, de Oliveira, Lucas, Paixão, Maria Helena Araújo, Teixeira, Maria do Socorro, Nogueira

Publikováno v: Radiologia Brasileira

To evaluate the mean glandular dose with a solid state detector and the image quality in a direct radiography system, utilizing phantoms.Irradiations were performed with automatic exposure control and polymethyl methacrylate slabs with different thic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::258e874b64c70ae37dd04a3e26b2b1ac
https://pubmed.ncbi.nlm.nih.gov/25741119

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Dissertation/ Thesis

Avaliação da dose glandular e qualidade de imagem de pacientes submetidas a mamografias com processamento de imagem digital

Autor: Marcio Alves de Oliveira

Publikováno v: Biblioteca Digital de Teses e Dissertações do CDTNCentro de Desenvolvimento da Tecnologia NuclearCDTN.

Nenhuma
O câncer de mama é, nos dias de hoje, uma das maiores causas de morte entre as mulheres em todo o mundo, pois muitas vezes não são diagnosticados precocemente. Só no Brasil foram estimados, em 2010/2011, mais de 49 mil novos casos d

Externí odkaz: http://www.bdtd.cdtn.br//tde_busca/arquivo.php?codArquivo=166

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