Imaging of cerebral venous thrombosis.
Diagn Interv Imaging
; 95(12): 1145-50, 2014 Dec.
Article
en En
| MEDLINE
| ID: mdl-25465119
ABSTRACT
Cerebral venous thrombosis (CVT) is a potentially life-threatening emergency. The wide ranging of clinical symptoms makes the use of imaging in "slices" even more important for diagnosis. Both CT and MRI are used to diagnose the occlusion of a venous sinus, but MRI is superior to CT for detecting a clot in the cortical or deep veins. CT can show the hyperintense clot spontaneously and CT angiography the intraluminal defect. MRI also detects this thrombus, whose signal varies over time in the acute phase, it is hypointense in T2*, whilst T1 and T2 can appear falsely reassuring; in the subacute phase, it is hyperintense on all sequences (T1, T2, FLAIR, T2*, diffusion). MRI easily shows the ischemic damage, even hemorrhagic, in the cerebral parenchyma in cases of CVT. Finally, imaging may reveal pathology at the origin of the CVT, such as a fracture of the skull, infection, tumor, dural fistula, or intracranial hypotension.
Palabras clave
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Venas Cerebrales
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Imagen por Resonancia Magnética
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Angiografía Cerebral
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Tomografía Computarizada por Rayos X
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Trombosis de la Vena
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Trombosis Intracraneal
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Imagen de Difusión por Resonancia Magnética
Tipo de estudio:
Diagnostic_studies
/
Etiology_studies
Idioma:
En
Revista:
Diagn Interv Imaging
Año:
2014
Tipo del documento:
Article