Mri Contrast Agents
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. NMR Relaxometry Applied to Chemical Studies of Paramagnetic Metal Cation Complexes: Fundamentals and Applications
Low field time-domain nuclear magnetic resonance (TD-NMR) relaxometry of paramagnetic metal cations (PMC) has been widely used to study and improve contrast agents for magnetic resonance imaging (MRI). However, despite its remarkable potential, TD-NMR is rarely used to study PMC complexes, and coordination compounds in non-biomedical application. Therefore,
Journal of the Brazilian Chemical Society. Publicado em: 2022
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2. The added value of diffusion-weighted imaging in the preoperative assessment of endometrial cancer
Resumo Objetivo: Determinar o valor adicional da difusão (DWI) em ressonância magnética (RM) na avaliação pré-operatória da invasão miometrial do câncer do endométrio, em comparação com sequências T2 e com o estudo dinâmico após contraste paramagnético (dynamic contrast-enhanced - DCE). Materiais e Métodos: Estudo retrospectivo incluindo 4
Radiol Bras. Publicado em: 18/07/2019
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3. Estudos conformacionais em compostos contendo íons lantanídeos
Lanthanide macrocyclic complexes, especially containing Gd(III) ions, are largely used as contrast agents in the medical diagnostic technique named Magnetic Resonance Imaging (MRI). Theoretical investigation of these compounds by molecular modeling methods is an emerging research area today. In this work we have performed a conformational study of the follow
Publicado em: 2008
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4. Euterpe Olerácea (Açaí) as an Alternative Oral Contrast Agent in MR Imaging (MRI) of the Gastrointestinal (GI) System: Characterization and Clinical Preliminary Results / Caracterização e aplicação preliminares de um agente de contraste oral natural para imagens por ressonância magnética do trato gastrintestinal
The use of contrast agents is a common practice in medical imaging protocols. Paramagnetic properties of certain compounds present in contrast agents can affect Magnetic Resonance Imaging (MRI) signals. For abdominal applications, they are usually injected, but may also be administered orally. However, their use as a routine technique is limited, mainly due
Publicado em: 2005
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5. A model for MRI contrast enhancement using T1 agents
Contrast in MRI relies on differences in the local environment of water and is often enhanced by using contrast agents. We present a simple model for evaluating the minimal contrast agent concentration required to produce “satisfactory” contrast enhancement in magnetic resonance images. Previous strategies have been based largely on empirical results for
The National Academy of Sciences.
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6. Hepatocellular carcinoma: development and early detection
Our eventual aim is to predict, using non-invasive imaging techniques, the biological behaviour of individual cirrhotic nodules. We are some distance away from this, so our current objective is to define imaging features which predict the histologic findings. This short review summarises the current capabilities and limitations of non-invasive imaging in det
e-Med.