Optical coherence tomography of traumatic aneurysms of the internal carotid artery: report of 2 cases.
J Neurosurg
; 124(2): 305-9, 2016 Feb.
Article
em En
| MEDLINE
| ID: mdl-26252460
ABSTRACT
The pathophysiology of extracranial traumatic aneurysm formation has not been fully elucidated. Intraarterial optical coherence tomography (OCT), an imaging modality capable of micrometer cross-sectional resolution, was used to evaluate patients presenting with saccular traumatic aneurysms of the internal carotid artery (ICA). Two consecutive trauma patients diagnosed with saccular traumatic aneurysms of the cervical ICA, per the institutional screening protocol for traumatic cerebrovascular injury, underwent digital subtraction angiography (DSA) with OCT. Optical coherence tomography demonstrated disruption of the intima with preservation and stretching of the more peripheral layers. In 1 patient the traumatic aneurysm was associated with thrombus formation and a separate, more proximal dissection not visible on CT angiography (CTA) or DSA. Imaging with OCT indicates that saccular traumatic aneurysms may develop from disruption of the intima with at least partial preservation of the media and adventitia. This provides in vivo evidence that saccular traumatic aneurysms result from a partial arterial wall tear rather than complete disruption. Interestingly, OCT was also able to detect arterial injury and thrombi not visible on CTA or DSA.
Palavras-chave
CTA = CT angiography; DSA = digital subtraction angiography; GCS = Glasgow Coma Scale; ICA = internal carotid artery; OCT = optical coherence tomography; TCVI = traumatic cerebrovascular injury; blunt trauma; dissecting aneurysm; internal carotid artery; optical coherence tomography; pseudoaneurysm; traumatic aneurysm; traumatic cerebrovascular injury; vascular disorders
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Aneurisma Intracraniano
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Lesões das Artérias Carótidas
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Dissecação da Artéria Carótida Interna
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Tomografia de Coerência Óptica
Tipo de estudo:
Guideline
Limite:
Adult
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Female
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Humans
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Male
Idioma:
En
Revista:
J Neurosurg
Ano de publicação:
2016
Tipo de documento:
Article