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Magnetic resonance imaging of normal and abnormal brain perfusion.
Tidwell, Amy S; Robertson, Ian D.
Afiliação
  • Tidwell AS; Private Imaging Consultation, Uxbridge, MA 01569, USA. amy.tidwellcrwe@gmail.com
Vet Radiol Ultrasound ; 52(1 Suppl 1): S62-71, 2011.
Article em En | MEDLINE | ID: mdl-21392158
ABSTRACT
The brain is highly susceptible to injury from any process that deprives its cells of oxygen, glucose, and other essential nutrients, and is therefore critically dependent on blood flow or perfusion. With hypoperfusion or ischemia, blood flow to the brain may be diminished to a level incompatible with normal function, eventually leading to acute ischemic stroke. Magnetic resonance (MR) imaging is one of several imaging methods used to evaluate brain perfusion and stroke. Using a multisequence approach comprised of conventional spin echo, inversion recovery, and heme-sensitive gradient echo pulse sequences, MR angiography, and diffusion and perfusion sensitive techniques, MR imaging is capable of identifying vascular lesions, measuring abnormal blood flow, and depicting the metabolic and structural consequences of ischemia. MR imaging objectives and strategies for the diagnosis of acute ischemic stroke in humans and animals, terminology, pathophysiology, and normal vascular anatomy are reviewed.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Encéfalo / Imageamento por Ressonância Magnética / Doenças do Gato / Isquemia Encefálica / Acidente Vascular Cerebral / Doenças do Cão Tipo de estudo: Diagnostic_studies / Prognostic_studies Limite: Animals Idioma: En Ano de publicação: 2011 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Encéfalo / Imageamento por Ressonância Magnética / Doenças do Gato / Isquemia Encefálica / Acidente Vascular Cerebral / Doenças do Cão Tipo de estudo: Diagnostic_studies / Prognostic_studies Limite: Animals Idioma: En Ano de publicação: 2011 Tipo de documento: Article