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Inicio Radiología TC multimodal en el diagnóstico del código ictus
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Vol. 53. Issue S1.
Pages 16-22 (October 2011)
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Vol. 53. Issue S1.
Pages 16-22 (October 2011)
Artículo especial
TC multimodal en el diagnóstico del código ictus
Multimodal CT in the diagnostic workup of stroke
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30519
A. Vicente Bártulosa,
Corresponding author
avicente.hrc@salud.madrid.org

Autor para correspondencia.
, J.S. Martínez San Millána, M. Carreras Ajab
a Servicio de Radiodiagnóstico, Hospital Universitario Ramón y Cajal, Madrid, España
b Servicio de Radiodiagnóstico, Hospital Universitario de Cruces, Baracaldo, Vizcaya, España
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Tabla 1. Análisis de TC-perfusión en ictus isquémico agudo
Resumen

La importancia del ictus y los avances en el tratamiento precoz y específico en los estudios de imagen han contribuido a la revolución diagnóstica y terapéutica del mismo. La TC multimodal (TC basal, TC de perfusión y TC-angiografía) está considerada como una técnica eficaz, rápida y disponible. Resulta clave para el diagnóstico precoz y para la selección de los pacientes que se beneficiarán del tratamiento trombolítico. La TC basal, sin contraste, es adecuada para descartar un origen hemorrágico o una lesión simuladora de ictus y para valorar la existencia de signos precoces. La TC de perfusión nos permitirá conocer la presencia y extensión de tejido isquémico infartado (no recuperable) y de tejido en riesgo o zona de penumbra (potencialmente recuperable), se pudiendo seleccionar así más apropiadamente los pacientes candidatos a tratamiento. Por último, la angio-TC permitirá valorar la circulación intra y extracraneal, conocer la alteración vascular que origina el cuadro y podrá servir de guía para el tratamiento (trombólisis intraarterial o mecánica).

Palabras clave:
TC perfusión
TC multimodal
Código ictus
Abstract

Stroke results in significant morbidity and mortality. Recent years have seen a revolution in the diagnosis and treatment of stroke, with advances in diagnostic imaging and improvements in early and specific treatment. Multimodal CT (unenhanced CT, perfusion CT, and CT angiography) is widely available, fast, and efficacious, all of which give it a key role in the early diagnosis of stroke and in the selection of patients who will benefit from thrombolytic treatment. Unenhanced CT is useful for ruling out hemorrhage or lesions that simulate stroke and for evaluating the presence of early signs. Perfusion CT enables us to know the presence and extension of infarcted ischemic tissue (irrecoverable) and of penumbra (tissue at risk that is potentially recoverable), thus ensuring more appropriate selection of candidates for treatment. Finally, CT angiography makes it possible to evaluate the intra- and extra-cranial circulation, to know the vascular alteration that originated the stroke, and to guide treatment (intra-arterial or mechanical thrombolysis).

Keywords:
Perfusion CT
Multimodal CT
Stroke imaging

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