Magnetic Resonance Angiography
Mostrando 13-24 de 50 artigos, teses e dissertações.
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13. Changes in diffusion and perfusion weighted magnetic resonance imaging in carotid angioplasty with stenting under cerebral protection by filters / Alterações de difusão e perfusão cerebral por RM em angioplastia carotídea com "stent" sob proteção cerebral por filtros
INTRODUÇÃO: A angioplastia carotídea com stent (ACS) sob proteção cerebral é opção terapêutica em pacientes com estenose carotídea. Existe o risco de embolia apesar da utilização do filtro e as modificações na perfusão cerebral após tratamento da estenose carotídea não são claras. O propósito deste estudo é avaliar, após ACS sob proteç
Publicado em: 2009
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14. Doença oclusiva da artéria basilar: aspectos clínicos e radiológicos / Basilar artery occlusive disease: clinical and radiological aspects
O objetivo deste estudo foi descrever as características demográficas, clínicas, radiológicas e o prognóstico da doença oclusiva da artéria basilar (DOAB), em uma população multiétnica. Foram estudados 40 indivíduos com infartos no território da artéria basilar (AB) confirmados por ressonância magnética, que sobreviveram após 30 dias à fase
Publicado em: 2008
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15. Infarto agudo do miocÃrdio com supra-ST nÃo complicado: no Hospital UniversitÃrio Oswaldo Cruz: MÃtodos de estratificaÃÃo de risco
The purpose of this paper is to review information about the non-complicated supra- ST myocardial infarct, based on medical evidence and on the last published guidelines. It will be reported theory, epidemiological aspects, strategies of cardiovascular risk stratification of adverse events available (which are non-invasive and invasive), accompanying exams a
Publicado em: 2007
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16. Renal and extrarenal manifestations of autosomal dominant polycystic kidney disease
The objective of the present study was to determine the frequency of the most common clinical features in patients with autosomal dominant polycystic kidney disease in a sample of the Brazilian population. The medical records of 92 patients with autosomal dominant polycystic kidney disease attended during the period from 1985 to 2003 were reviewed. The follo
Brazilian Journal of Medical and Biological Research. Publicado em: 2006-04
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17. "Development and clinical applications of a high performance radio-frequency/gradient coil integrated system for Magnetic Resonance Imaging in 0.5 Tesla" / "Desenvolvimento e aplicações clínicas de um sistema integrado transdutor/bobinas de gradientes de alto desempenho para obtenção de imagens por ressonância magnética em 0.5 TESLA"
Este trabalho descreve o desenvolvimento de um sistema integrado transdutor/bobinas de gradientes de alto desempenho para Imagens por Ressonância Magnética. Este sistema é composto por um transdutor de radiofreqüência tipo sela e um conjunto de 3 bobinas locais assimétricas. No desenho do transdutor foram otimizados os parâmetros: relação sinal ruí
Publicado em: 2005
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18. "Contribuição da ressonância magnética na avaliação de doadores do lobo direito ao transplante hepático intervivos" / Contribuition of magnetic resonance in the evaluation of donors for right lobe living liver transplantation
The purpose of this study was to establish the value of the magnetic resonance in 30 potential donors for right lobe living liver transplantation. The main goal was to determine the following factors: steatosis; biliar anatomy; hepatic arterial anatomy; portal and hepatic venous anatomy, and lobar liver volume, comparing them to liver biopsy results, to intr
Publicado em: 2004
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19. Comparison of magnetic resonance angiography, duplex ultrasound, and digital subtraction angiography in assessment of extracranial internal carotid artery stenosis.
The results of a prospective study comparing ultrasound, intra-arterial digital subtraction angiography, and magnetic resonance angiography in the assessment of the degree of extracranial internal carotid artery stenosis are reported in patients with symptoms of recent carotid territory ischaemia. A total of 70 patients and 137 vessels were examined by all t
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20. Assessment of coronary artery stenosis by magnetic resonance imaging.
OBJECTIVE: The findings of magnetic resonance and x-ray angiography were compared for assessment of coronary artery stenosis in this validation study. BACKGROUND: Magnetic resonance angiography of the coronary arteries has recently been described, but there has been no comparison with x-ray angiography of localisation or assessment of important characteristi
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21. Magnetic resonance angiography in subclavian steal syndrome
A case is reported of a patient with the subclavian steal syndrome in whom the reversed blood flow of the vertebral artery was shown by phase encoded magnetic resonance angiography.
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22. Gadolinium-Enhanced Magnetic Resonance Angiography in Scimitar Syndrome: Diagnosis and Postoperative Evaluation
We report the 1st magnetic resonance demonstration of both an anomalous pulmonary venous drainage and systemic arterial supply in a patient with scimitar syndrome. With its superior imaging capabilities, gadolinium-enhanced magnetic resonance angiography provides a powerful diagnostic tool for this complex congenital lesion and offers the possibility of surg
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23. Magnetic resonance angiographic assessment after extracranial-intracranial bypass surgery.
Extracranial-intracranial (EC-IC) bypass operation may be performed to augment the distal cerebral circulation. The bypass patency is usually assessed postoperatively with conventional cerebral angiography. Six patients are reported in whom the bypass patency was assessed using magnetic resonance angiography (MRA): Two had intracavernous carotid aneurysms, t
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24. BOOK REVIEWS: Clinical Magnetic Resonance Angiography.