Feasibility and safety of intraoperative BOLD functional MRI cerebrovascular reactivity to evaluate extracranial-to-intracranial bypass efficacy.
Neurosurg Focus
; 46(2): E7, 2019 02 01.
Article
em En
| MEDLINE
| ID: mdl-30717072
ABSTRACT
Blood oxygenation level-dependent functional MRI cerebrovascular reactivity (BOLD-CVR) is a contemporary technique to assess brain tissue hemodynamic changes after extracranial- intracranial (EC-IC) bypass flow augmentation surgery. The authors conducted a preliminary study to investigate the feasibility and safety of intraoperative 3-T MRI BOLD-CVR after EC-IC bypass flow augmentation surgery. Five consecutive patients selected for EC-IC bypass revascularization underwent an intraoperative BOLD-CVR examination to assess early hemodynamic changes after revascularization and to confirm the safety of this technique. All patients had a normal postoperative course, and none of the patients exhibited complications or radiological alterations related to prolonged anesthesia time. In addition to intraoperative flow measurements of the bypass graft, BOLD-CVR maps added information on the hemodynamic status and changes at the brain tissue level. Intraoperative BOLD-CVR is feasible and safe in patients undergoing EC-IC bypass revascularization. This technique can offer immediate hemodynamic feedback on brain tissue revascularization after bypass flow augmentation surgery.
Palavras-chave
ACA = anterior cerebral artery; BOLD; BOLD = blood oxygen leveldependent; CVR = cerebrovascular reactivity; EC = extracranial; EC-IC bypass; IC = intracranial; ICA = internal carotid artery; ICG = indocyanine green; MCA = middle cerebral artery; NIHSS = National Institutes of Health Stroke Scale; STA = superficial temporal artery; cerebrovascular; functional MRI; mRS = modified Rankin Scale; steno-occlusive disease
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Consumo de Oxigênio
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Imageamento por Ressonância Magnética
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Revascularização Cerebral
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Transtornos Cerebrovasculares
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Monitorização Neurofisiológica Intraoperatória
Limite:
Aged
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article