[Neuroimaging evaluation of intracerebral hemorrhage]. / Bildgebende Diagnostik bei intrazerebralen Blutungen.
Nervenarzt
; 80(2): 205-13; quiz 214, 2009 Feb.
Article
en De
| MEDLINE
| ID: mdl-19194687
ABSTRACT
Spontaneous intracerebral hemorrhage (ICH) is responsible for 10-15% of all strokes. Standard evaluation includes a CT examination, in which ICH is initially hyperdense but gradually decreases in density over days to weeks. In emergency situations, native CT can be supplemented with CT angiography, which reliably shows aneurysms and other vascular abnormalities larger than 2-3 mm. For detecting ICH in hyperacute situations, MRI is as sensitive as CT but signal characteristics are more complex, strongly depending on the oxygenation status of hemoglobin and the redox status of iron. In terms of localization, deep ICH in typical locations with hypertensive etiology is differentiated from atypical lobar ICH. Atypical ICH in elderly patients is often caused by cerebral amyloid angiopathy. Despite advances in noninvasive imaging techniques, today most atypical ICH patients still require digital subtraction angiography for a complete evaluation. In contrast, hypertensive ICH can be assumed in patients with known arterial hyperstension and ICH in a typical location.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Encéfalo
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Imagen por Resonancia Magnética
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Tomografía Computarizada por Rayos X
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Hemorragia Cerebral
Tipo de estudio:
Diagnostic_studies
Límite:
Humans
Idioma:
De
Revista:
Nervenarzt
Año:
2009
Tipo del documento:
Article
Pais de publicación:
ALEMANHA
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ALEMANIA
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DE
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DEUSTCHLAND
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GERMANY