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Multidetector computed tomography angiography in clinically suspected hyperacute ischemic stroke in the anterior circulation: an etiological workup in a cohort of Brazilian patients / Angiotomografia computadorizada multidetectores na avaliação da suspeita clínica de acidente vascular encefálico isquêmico hiperagudo da circulação anterior: determinação etiológica precoce em um grupo de pacientes brasileiros
Pacheco, Felipe Torres; Littig, Ingrid Aguiar; Gagliardi, Rubens Jose; Rocha, Antônio Jose da.
  • Pacheco, Felipe Torres; Santa Casa de São Paulo. Faculdade de Ciências Médicas. Departamento de Neuroradiologia. São Paulo. BR
  • Littig, Ingrid Aguiar; Santa Casa de São Paulo. Faculdade de Ciências Médicas. Departamento de Neuroradiologia. São Paulo. BR
  • Gagliardi, Rubens Jose; Santa Casa de São Paulo. Faculdade de Ciências Médicas. Departamento de Neuroradiologia. São Paulo. BR
  • Rocha, Antônio Jose da; Santa Casa de São Paulo. Faculdade de Ciências Médicas. Departamento de Neuroradiologia. São Paulo. BR
Arq. neuropsiquiatr ; 73(5): 408-414, 05/2015. tab, graf
Article in English | LILACS | ID: lil-746490
ABSTRACT
Objective The potential of computed tomography angiography (CTA) was assessed for early determination of stroke subtypes in a Brazilian cohort of patients with stroke. Method From July 2011 to July 2013, we selected patients with suspected hyperacute stroke (< 6 hours). Intracranial and cervical arteries were scrutinized on CTA and their imaging features were correlated with concurrent subtype of stroke. Results Stroke was documented in 50/106 selected patients (47.2%) based on both clinical grounds and imaging follow-up (stroke group), with statistically significant arterial stenosis and vulnerable plaques on CTA. Intracranial large artery disease was demonstrated in 34% of patients in the stroke group. Partial territorial infarct prevailed (86%) while artery-to-artery embolization was the most common stroke mechanism (52%). Conclusion Multidetector CTA was useful for the etiologic work-up of hyperacute ischemic stroke and facilitated the knowledge about the topographic pattern of brain infarct in accordance with its causative mechanism. .
RESUMO
Objetivo Avaliar o potencial da angiotomografia computadorizada multidetectores (ATCM) na determinação etiológica precoce do acidente vascular encefálico (AVE) e correlacionar o mecanismo causal com o padrão de infarto. Método De Julho de 2011 a Julho de 2013, foram selecionados os pacientes com suspeita clínica de AVE hiperagudo. Os achados da ATCM dos vasos intracranianos e cervicais foram correlacionados com a etiologia final do evento. Resultados AVE foi confirmado em 50/106 pacientes (47,2%). Estes apresentaram alterações angiográficas estatisticamente mais relevantes. Aterosclerose dos grandes vasos intracranianos esteve presente em 34% destes pacientes. O padrão radiológico topográfico de infarto mais comum foi o infarto territorial parcial (86%). A embolização arterio-arterial foi o mecanismo mais prevalente (52%). Conclusão A utilização da ATCM traz benefícios na detecção etiológica precoce dos pacientes com suspeita de AVE hiperagudo, além de possibilitar o entendimento do padrão radiológico topográfico de acordo com o mecanismo causal do evento isquêmico. .
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Cerebral Angiography / Brain Ischemia / Brain Infarction / Multidetector Computed Tomography Type of study: Diagnostic study / Etiology study / Evaluation studies / Observational study / Risk factors / Screening study Limits: Aged / Aged80 / Female / Humans / Male Country/Region as subject: South America / Brazil Language: English Journal: Arq. neuropsiquiatr Journal subject: Neurology / Psychiatry Year: 2015 Type: Article Affiliation country: Brazil Institution/Affiliation country: Santa Casa de São Paulo/BR

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Full text: Available Index: LILACS (Americas) Main subject: Cerebral Angiography / Brain Ischemia / Brain Infarction / Multidetector Computed Tomography Type of study: Diagnostic study / Etiology study / Evaluation studies / Observational study / Risk factors / Screening study Limits: Aged / Aged80 / Female / Humans / Male Country/Region as subject: South America / Brazil Language: English Journal: Arq. neuropsiquiatr Journal subject: Neurology / Psychiatry Year: 2015 Type: Article Affiliation country: Brazil Institution/Affiliation country: Santa Casa de São Paulo/BR