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Early CT signs in acute ischaemic stroke

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Resumo:The usefulness of CT in the first hours after acute ischaemic stroke has been highlighted. It has been shown to positively diagnose cerebral infarction and can contribute to determine the eligibility of the patient for fibrinolysis. It is important that all doctors responsible for the initial approach of stroke patients are able to recognise early CT signs of acute ischaemic stroke.Ischaemia results in changes in cerebral tissue density which are present on a CT scan taken during the first 4 hours after a stroke. This has been demonstrated in animal and human studies.Ischaemic oedema, the hyper-dense artery sign and cerebral oedema are early CT signs, that are potentially visible in the first hours after ischaemic stroke. Each of this signs has its own meaning and implications, which can help decide whether a patient is eligible or not for fibrinolysis.Images of each of the above mentioned signs are presented.
Autores principais:Tribolet de Abreu, Tiago
Assunto:acidente vascular cerebral tomografia axial computorizada cerebral vascular accident computerised axial tomography
Ano:2002
País:portugal
Tipo de documento:artigo
Instituição associada:Sociedade Portuguesa de Medicina Interna
Idioma:português
Origem:Revista Portuguesa de Medicina Interna

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