Fast Imaging
Mostrando 1-12 de 81 artigos, teses e dissertações.
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1. Evaluation of pulmonary nodules by magnetic resonance imaging sequences: which sequence will replace computed tomography?
SUMMARY OBJECTIVE: This study aimed to determine the role of magnetic resonance imaging in minimizing radiation exposure, especially in the follow-up of pulmonary nodules. METHODS: Patients who applied to our hospital between April 2013 and August 2018 for various reasons and had lung-mediastinal dynamic magnetic resonance imaging and thoracic computed tom
Revista da Associação Médica Brasileira. Publicado em: 2022
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2. Extra-pituitary midline structural abnormalities associated with ectopic posterior pituitary detected on a new rapid MRI protocol (FAST1.2)
ABSTRACT Objective: Test if the MRI FAST1.2 protocol can detect extra-pituitary midline structural brain abnormalities in patients with ectopic posterior pituitary (EPP), and highlighting their radiological-laboratory correlations. Subjects and methods: Cross-sectional study of patients with EPP and control group. All individuals were submitted to FAST1.2,
Archives of Endocrinology and Metabolism. Publicado em: 2022
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3. Knowledge is power - keeping radiology relevant in the age of AI-based healthcare
Resumo Objetivo: Avaliar o desempenho da ressonância magnética (RM) de 1,5 T true fast imaging with steady state precession (TrueFISP) para detecção e caracterização de anormalidades pulmonares causadas por doença do coronavírus 2019 (COVID-19). Materiais e Métodos: Neste estudo retrospectivo unicêntrico, imagens de tomografia computadorizada (TC
Radiol Bras. Publicado em: 2021-08
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4. Aspectos da pneumonia por COVID-19 na ressonância magnética 1.5 T TrueFISP
Resumo Objetivo: Avaliar o desempenho da ressonância magnética (RM) de 1,5 T true fast imaging with steady state precession (TrueFISP) para detecção e caracterização de anormalidades pulmonares causadas por doença do coronavírus 2019 (COVID-19). Materiais e Métodos: Neste estudo retrospectivo unicêntrico, imagens de tomografia computadorizada (TC
Radiol Bras. Publicado em: 2021-08
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5. Digital images of seedling for evaluating coffee seed vigor
Resumo: A análise de imagens digitalizadas de plântulas é cada vez mais utilizada em programas de controle de qualidade de sementes devido à sua praticidade, objetividade e rapidez na obtenção dos resultados. Apesar dessas vantagens, ainda não existem pesquisas comprovando a eficiência dessa técnica para a análise do vigor de sementes de café. Ass
J. Seed Sci.. Publicado em: 2019-01
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6. Colorimetric Determination of Ascorbic Acid Based on Its Interfering Effect in the Enzymatic Analysis of Glucose: An Approach Using Smartphone Image Analysis
The use of digital image analysis as an analytical tool is a reality nowadays, and the use of smartphones stands out due to its high accessibility and practicality. Ascorbic acid (AA) is a natural and essential vitamin available as a supplement as a result of its use in preventing and treating several pathologies. This paper reports a simple, fast and low co
J. Braz. Chem. Soc.. Publicado em: 2017-12
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7. Accuracy of magnetic resonance imaging for measuring maturing cartilage: A phantom study
OBJECTIVES: To evaluate the accuracy of magnetic resonance imaging measurements of cartilage tissue-mimicking phantoms and to determine a combination of magnetic resonance imaging parameters to optimize accuracy while minimizing scan time. METHOD: Edge dimensions from 4 rectangular agar phantoms ranging from 10.5 to 14.5 mm in length and 1.25 to 5.5 mm in
Clinics. Publicado em: 2016-07
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8. Automatic DTI-based parcellation of the corpus callosum through the watershed transform
INTRODUCTION: Parcellation of the corpus callosum (CC) in the midsagittal cross-section of the brain is of utmost importance for the study of diffusion properties within this structure. The complexity of this operation comes from the absence of macroscopic anatomical landmarks to help in dividing the CC into different callosal areas. In this paper we propose
Rev. Bras. Eng. Bioméd.. Publicado em: 2014-06
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9. Multidrug resistant tuberculosis versus non-tuberculous mycobacterial infections: a CT-scan challenge
INTRODUCTION: Clinical, laboratory and imaging findings in patients with multidrug resistanttuberculosis (MDR-TB) and non-tuberculosis mycobacterium (NTM) are similar, and the majority of these patients present with positive smear for Acid Fast Bacilli (ADB) and no response to first line anti-TB treatment, so sputum culture and PCR are necessary, especially
Braz J Infect Dis. Publicado em: 2013-04
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10. Padronização das técnicas de PNA e PCR em tempo real para detecção das mutações ativadoras no GNAS na síndrome de McCune-Albright / Standardization of the PNA and real time techniques for the detection of activating mutations in the GNAS in McCune-Albright syndrome
The McCune-Albright Syndrome (MAS) is a genetic disease, with incidence estimated at 1/100.000 and 1/1000000 cases per year. MAS is clinically characterized by the triad: bone fibrous dysplasia (FD) café-au-lait skin spots and endocrine hyperfunction, such as: precocious puberty (PP), Cushing s syndrome, hyperthyroidism and acromegaly. The diagnosis of MAS
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/10/2012
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11. Mineração de imagens médicas utilizando características de forma / Medical image supported by shape features
Bases de imagens armazenadas em sistemas computacionais da área médica correspondem a uma valiosa fonte de conhecimento. Assim, a mineração de imagens pode ser aplicada para extrair conhecimento destas bases com o propósito de apoiar o diagnóstico auxiliado por computador (Computer Aided Diagnosis - CAD). Sistemas CAD apoiados por mineração de imagen
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/04/2012
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12. Renal oxygen content is increased in healthy subjects after angiotensin-converting enzyme inhibition
OBJECTIVE: The association between renal hypoxia and the development of renal injury is well established. However, no adequate method currently exists to non-invasively measure functional changes in renal oxygenation in normal and injured patients. METHOD: R2* quantification was performed using renal blood oxygen level-dependent properties. Five healthy norm
Clinics. Publicado em: 2012-07