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Estudo Geral
Master thesis . 2012
Data sources: Estudo Geral
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O papel da ressonância magnética na miocardiopatia dilatada

Authors: Beleza, Pedro Miguel Pereira;

O papel da ressonância magnética na miocardiopatia dilatada

Abstract

Introdução: a ecografia cardíaca é o exame mais frequentemente utilizado no diagnóstico de miocardiopatia dilatada. Novos estudos mostram que a ressonância magnética apresenta várias vantagens em relação à ecografia no diagnóstico e prognóstico da doença. Objectivos: Revisão de literatura das características imagiológicas e das vantagens diagnósticas e prognósticas do uso da ressonância magnética na miocardiopatia dilatada. Desenvolvimento: A miocardiopatia dilatada é definida como uma doença miocárdica de etiologia desconhecida sendo, de todas as miocardiopatias a mais frequente. Tem causa genética em 20% a 50% dos casos, sendo os restantes devido a agressões tóxicas, metabólicas e infecciosas. A detecção precoce e adequação do prognóstico revelam-se fundamentais para um tratamento e manutenção adequados. A ressonância magnética cardíaca, por permitir uma melhor caracterização morfofuncional e tecidual tem potencial para melhor caracterizar esta patologia, conjuntamente com outros exames normalmente utilizados como a ecocardiografia cardíaca, electrocardiograma e radiografia do tórax. A técnica de realce tardio através do uso de gadolínio endovenoso e captação da imagem subsequentemente apresenta implicações prognósticas relevantes, identificando indivíduos em risco e representando um método não invasivo, uma vez que pode ser repetido sem aplicação de radiação ou material radioactivo. Conclusão: A ressonância magnética é uma ferramenta útil na avaliação diagnóstica e prognóstica da miocardiopatia dilatada.

Introduction: the cardiac ultrasound is the most frequently used exam on the diagnosis of dilated cardiomyopathy. Recent studies have shown that the magnetic resonance displays several advantages over the ultrasound in the diagnosis and prognosis of the disease. Objectives: Revision of the diagnostic and prognostic advantages of the use of magnetic resonance on dilated cardiomyopathy Development: The dilated cardiomyopathy is defined as a myocardial disease of unknown etiology being, among all the cardiomyopathies, the most frequent. In 20% to 50% of the cases, it has a genetic cause, whereas the remaining are consequence of toxic, metabolic and infectious aggressions. Precocious detection and prognosis adequacy reveal fundamental in order to achieve appropriate treatment and maintenance. The cardiac magnetic resonance, by allowing a better morphofunctional and tissue characterization, reveals great potential to characterize this pathology, along with other commonly used exams such as cardiac ultrasound and thorax X-ray. The delayed enhancement technique, through the use of intravenous gadolinium and image processing, subsequently presents yet relevant prognostic implications, thus identifying individuals at risk and representing a noninvasive method, since it can be repeated without use of radiation or radioactive material. Conclusion: The magnetic resonance is a useful tool in the diagnostic and prognostic evaluation of dilated cardiomyopathy.

Trabalho final de mestrado integrado em Medicina área científica de Radiologia, apresentado á Faculdade de Medicina da Universidade de Coimbra

Country
Portugal
Related Organizations
Keywords

Domínio/Área Científica::Ciências Médicas, Miocardiopatia hipertrófica, Ressonância magnética

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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