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Vol. 3. Issue 4.
Pages 346-348 (January 1992)
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Vol. 3. Issue 4.
Pages 346-348 (January 1992)
Vena oftálmica superior en fístula carótido-cavernosa espontánea. Valoración mediante Dúplex-Doppler color
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D. Delgado, R. González-Carpio, J.A. Torrado, J. Zapata
Servicio de Radiodiagnóstico. Hospital Infanta Cristina. Badajoz
M. Polaina*, L.M. Lorenzana*, J.M. Cabezudo*
* Servicio de Neurocirugía. Hospital Infanta Cristina. Badajoz
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Resumen

La causa más frecuente de dilatación de la vena oftálmica superior es la Fístula Carótido-Cavernosa. Otras entidades como la oftalmopatía tiroidea, pseudotumor orbitario, masas del apex orbitario, meningioma paraselIar, dilatación varicosa o variante normal, pueden ser también causa de dilatación de la vena oftálmica superior.

El Duplex-Doppler Color de la vena oftálmica superior dilatada, al valorar la existencia, dirección, velocidad y tipo de flujo existente del área vascular elegida, puede distinguir a la fístula carótido-cavernosa como causa de dilatación de la vena oftálmica superior del resto de las entidades que la pueden producir, al mostrar la inversión y arterialización del flujo con patrón de baja resistencia en dicha vena, de la que presentamos un caso claramente demostrativo.

Palabras clave:
Fístula carótido-cavernosa
Ecografía orbitaria
Tomografía Computarizada
Vena oftálmica superior
Doppler color y pulsado
Abstract

Carotid-cavernous fistula is the most frequent cause for dilatation of the upper ophthalmic vein. Other entities as thyroid ophthalmopathy, orbital pseudotumor, orbital apex masses, paraselIar meningioma, varicose enlargement, or anatomicaL variant may also produce dilatation of the upper ophthalmic vein.

The Duplex-Doppler Colour of the enlarged upper ophthalmic is useful for evaluating the direction, speed, and type of blood flow in this particular vascular area. Thus, this technique may easily differentiate carotid- cavernous fistula from other causes of upper ophthalmic vein dilatation, because reversal and arterialization of blood flow with low resistances in the vein are characteristic of this entity.

One demonstrative case is presented.

Key words:
Carotid-cavernous fistula
Orbital ultrasound
Computed Tomography
Upper ophthalmic vein
Pulsed and Color Doppler flow imaging

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