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检索条件"机构=Biomedical Engineering Program/COPPE"
183 条 记 录,以下是21-30 订阅
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Gas vesicle isolated from microorganisms to act as ultrasound contrast agent
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Research on biomedical engineering 2021年 第1期37卷 1-7页
作者: Garrute, Felipe Vianna Machado, João Carlos Biomedical Engineering Program-COPPE Federal University of Rio de Janeiro Horácio Macedo Ave. 2030 Center of Technology Block H Room 327 Rio de JaneiroRJ21941-914 Brazil Post-graduate Program in Surgical Sciences Department of Surgery School of Medicine Federal University of Rio de Janeiro Carlos Chagas Filho Ave. 373 Health Sciences Center Block K Room 49 Rio de JaneiroRJ21941-902 Brazil
Purpose: Ultrasound contrast agent (UCA), used to enhance the contrast in ultrasonography, consists of microbubbles filled with an inert gas and encapsulated with a protein or a lipidic-stabilize membrane. The UCAs ar... 详细信息
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Structural validation of the “Teacher’s report form” attention problems scale in a Brazilian sample
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Measurement Instruments for the Social Sciences 2021年 第1期3卷 1-9页
作者: Pires, Thiago Rocha, Marina Assis, Simone Nobre, Flavio Department of Studies on Violence and Health National School of Public Health (Fiocruz) Rio de Janeiro Brazil Postgraduate Program in Developmental Disorders Universidade Presbiteriana Mackenzie Sao Paulo Brazil Neurology Postgraduate Program University Hospital Gaffrée and Guinle (Unirio) Rio de Janeiro Brazil Biomedical Engineering Program/ COPPE Department Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil
Attention deficit hyperactivity disorder is one of the most common childhood neurodevelopmental syndromes. Although clinical evaluation is considered the gold standard in diagnosing psychiatric disorders, in epidemiol...
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FEM modeling and simulation of broadband ultrasonic transducers with randomized inhomogeneous backing material
arXiv
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arXiv 2022年
作者: Moreno, Eduardo Pereira, Wagner C.A. von Kruger, Marco Antonio Leija, Lorenzo Ramos, Antonio Ultrasonic Group ICIMAF Calle 15 No 551 Vedado La Habana Cuba Biomedical Engineering Program COPPE UFRJ 2030 Horacio Macedo Ave Rio de Janeiro21941-914 Brazil Department of Electrical Engineering Bioelectronics Section Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional Cinvestav México City Mexico R&D Group "Sistemas y Tecnologías Ultrasónicas" Instituto de Tecnologías Físicas y de la Información CSIC Madrid Spain
A FEM application for the accurate design of composite backing of ultrasonic transducers is presented. The idea is to obtain the dependence between the volume ratio of the tungsten powder in an epoxy matrix used as a ... 详细信息
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Do FCU and ECU muscle architecture in children with hemiparetic cerebral palsy affect wrist functionality?
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Research on biomedical engineering 2019年 第3-4期35卷 173-181页
作者: Barroso, Patricia Neto de Oliveira, Liliam Fernandes Amaral, Giovanna Mendes Gontijo, Ana Paula Bensemann Campos, Márcio Rodrigues Menegaldo, Luciano Luporini Biomedical Engineering Program COPPE Federal University of Rio de Janeiro Av Horácio Macedo Rio de Janeiro2030 Brazil School of Physical Education and Sports Federal University of Rio de Janeiro Rio de Janeiro Brazil Belo Horizonte Brazil Department of Physical Therapy Federal University of Minas Gerais Belo Horizonte Brazil Department of Radiology and Image Diagnosis University Hospital Federal University of Minas Gerais Belo Horizonte Brazil
Purpose: In individuals with cerebral palsy (CP), wrist flexor and extensor muscles can have impaired tonus, strength, posture, and range of motion. Muscle force and movement generating capacity are related to muscle ... 详细信息
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Tracing the shear modulus of blood plasma during clotting and based on acoustic radiation force induced vibration of an embedded sphere
Tracing the shear modulus of blood plasma during clotting an...
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2017 IEEE International Ultrasonics Symposium, IUS 2017
作者: Silva Costa, Jose Francisco Machado, Joao Carlos Guilherme Crossetti Parcero João Carlos Machado Biomedical Engineering Program COPPE/UFRJ Rio de Janeiro Brazil Post-Graduation Program in Surgical Sciences Dept. of Surgery/School of Medicine/UFRJ Rio de Janeiro Brazil
During coagulation, blood changes from liquid to gel, and the clot viscoelastic properties continue modifying until fibrinolysis. Ultrasound (US) was used in this work to trace the time-changing shear modulus, μ, dur... 详细信息
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A Thermochromic Test Body and its Relationship with the Effective Radiation Area (ERA) of Therapeutic Ultrasound Devices
A Thermochromic Test Body and its Relationship with the Effe...
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Global Medical engineering Physics Exchanges/Pan American Health Care Exchanges Conference
作者: R. M. Costa T. P. Omena M. A. von Krüger W. C. A. Pereira National Institute of Cancer Rio de Janeiro Brazil Biomedical Engineering Program COPPE-UFRJ Rio de Janeiro Brazil
This paper presents a thermochromic test body to qualitative evaluate the Effective Radiation Area (ERA) of Therapeutic Ultrasound (TUS) devices. The thermal areas produced by three transducers are measured and compar... 详细信息
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Development of a Calorimeter to Evaluate Heating of Soft Tissue Phantom Irradiated by Physiotherapeutic Ultrasound Beams
Development of a Calorimeter to Evaluate Heating of Soft Tis...
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Global Medical engineering Physics Exchanges/Pan American Health Care Exchanges Conference
作者: T. P. Omena M. A. von Krüger W. C. A. Pereira Department of Physiotherapy College of Medicine - UFRJ Rio de Janeiro Brazil Program of Biomedical Engineering COPPE-UFRJ Rio de Janeiro Brazil
Calorimeters can be employed in the measurement of temperature of a medium heated by ultrasound beams. The temperature elevation is attributed to the absorbed energy at a depth of a biological tissue mimicking phantom... 详细信息
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Construction of mixed covering arrays using a combination of simulated annealing and variable neighborhood search
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Electronic Notes in Discrete Mathematics 2015年 47卷 109-116页
作者: Rodriguez-Cristerna, Arturo Torres-Jimenez, Jose Gómez, W. Pereira, W.C.A. Technology Information Laboratory CINVESTAV Ciudad Victoria Tamaulipas Mexico Biomedical Engineering Program/COPPE Federal University of Rio de Janeiro Rio de Janeiro Brazil
The construction of Mixed Covering Arrays (MCA) with the minimum number of rows has been a problem faced in different ways. This paper aims to construct near optimal MCAs through a novel approach based on Simulated An... 详细信息
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Evaluation of acoustic and thermal properties of gellan-gum phantom to mimic biological tissue
Evaluation of acoustic and thermal properties of gellan-gum ...
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Pan American Health Care Exchanges, PAHCE
作者: G. Cortela K. M. Lima L. E. Maggi C. Negreira W. C.A. Pereira Laboratorio de Acustica Ultrasonora UdelaR Mvd Uruguay Biomedical Engineering Program COPPE/UFRJ RJ Brazil CCBN/UFAC AC Brazil
A hydrogel-based (gellan gum) tissue mimicking material (TMM) was developed. Its acoustic and thermal properties were characterized. The hydrogel was combined with different sizes of glass spheres. The acoustic proper... 详细信息
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Breast tumor classification in ultrasound images using neural networks with improved generalization methods  37
Breast tumor classification in ultrasound images using neura...
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37th Annual International Conference of the IEEE engineering in Medicine and Biology Society, EMBC 2015
作者: De S. Silva, S.D. Costa, M.G.F. De A. Pereira, W.C. Filho, C. F. F. Costa Amazonas Federal University Manaus AM Brazil Center for Research and Development in Electronic and Information Technology Federal University of Amazonas Technology and Information Center Manaus AM Brazil Biomedical Engineering Program/COPPE Federal University of Rio de Janeiro Rio de Janeiro Brazil Center for Research and Development in Electronic and Information Technology Federal University of Amazonas Manaus AM Brazil
Mammography, scintimammography and ultrasound images have been used to increase the specificity of breast cancer image diagnosis. Concerning breast cancer image diagnosis with ultrasound, some results found in the lit...
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