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1.
Rev. chil. cardiol ; 38(3): 210-212, dic. 2019. ilus
Artigo em Espanhol | LILACS | ID: biblio-1058065

RESUMO

ABSTRACT: Bicuspid aortic valve (BAV) disease is generally associated with thoracic aortic dilatation (TAD). Related factors include; genetical, morphological (valvular phenotype) and most recently, hemodynamic profiles associated with flow pattern and wall shear stress. Cardiac magnetic resonance 4D Flow (4DF) can give an integral evaluation of these later flow variables. Remarkable, different spectrums of flow and vortex direction exist in BAV that are related to the site of TAD (proximal or distal). Therefore, we present a 57 years old patient with BAV (Sievers 0) with anteroposterior leaflets distribution in which 4DF depicted an anteriorly and righthand oriented jet that correlated with the zone of grater AD; also, vortex rotation was counterclockwise, corresponding to the most frequent vortex type in BAV. In conclusion, 4DF is a powerful and ground-breaking tool that enhances our knowledge of BAV related aortopathy.


Assuntos
Imagem Cinética por Ressonância Magnética/métodos , Doença da Válvula Aórtica Bicúspide , Aneurisma Aórtico , Doenças da Aorta/fisiopatologia , Interpretação de Imagem Assistida por Computador , Doenças Cardiovasculares/diagnóstico por imagem , Imageamento Tridimensional , Técnicas de Imagem de Sincronização Cardíaca/métodos
2.
Radiología (Madr., Ed. impr.) ; 49(4): 227-235, jul. 2007. ilus, tab
Artigo em Es | IBECS | ID: ibc-69680

RESUMO

La alteración del ritmo cardíaco o arritmia puede presentarse con o sin enfermedad cardíaca subyacente. La mayoría de cardiopatías dan lugar a arritmias, pero también otras enfermedades, como por ejemplo de causa metabólica, alteraciones electrolíticas, drogas y fármacos pueden dar lugar asimismo a alteraciones del ritmo cardíaco en corazones previamente sanos.La clínica puede ser desde asintomática, como un hallazgo casual en una exploración de rutina, hasta la muerte súbita como única manifestación clínica.Ante la sospecha clínica de una arritmia se ha de confirmar ésta mediante la realización de un estudio Holter y un estudio electrofisiológico.A continuación se ha de descartar una cardiopatía asociada. La ecocardiografía es la primera técnica de imagen que se debe de realizar, la tomografía computarizada multidetector y la resonancia magnética (RM) son técnicas más recientes en el campo de la cardiología, y que poco a poco van tomando posiciones e indicaciones precisas. Dentro del terreno de la arritmología la RM tiene su indicación en dos campos muy concretos: la fibrilación auricular y la displasia arritmogénica del ventrículo derecho


Arrhythmia or altered heart rhythms can present with or without underlying heart disease. Most cardiopathies give rise to arrhythmias; however, arrhythmias can also be caused in previously healthy hearts by other conditions such as metabolic disorders, electrolyte imbalances, and drug use or abuse.The clinical presentation can range from asymptomatic cases discovered incidentally on routine examination to sudden death as the only clinical sign.In cases with clinical suspicion of arrhythmia, Holter and electrophysiological studies should be performed. If the condition is confirmed, associated cardiopathy must be ruled out. Echocardiography should be the first imaging test to be performed. Multidetector computed tomography (CT) and magnetic resonance imaging (MRI) have been applied to the field of cardiology more recently and are gradually acquiring specific roles with precise indications. In the study of arrhythmias, MRI is indicated in two particular areas: auricular fibrillation and arrhythmogenic right ventricular dysplasia


Assuntos
Humanos , Displasia Arritmogênica Ventricular Direita/diagnóstico , Fibrilação Atrial/diagnóstico , Imageamento por Ressonância Magnética , Radiologia
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