Método de flujo electromagnético

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¿Para qué se utiliza?

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1

¿Para qué se utiliza?

Se utiliza para medir el efecto de los procedimientos quirúrgicos en el flujo sanguíneo durante el tiempo de la cirugía, como pueden ser cambios repentinos de flujo.

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2

¿En qué consiste?

Se colocan dos electrodos en ángulo recto con respecto al flujo sanguíneo. Se crea un campo magnético oscilante. Los electrodos medirán la fuerza electromotriz, la cuál será proporcional al flujo sanguíneo. Cuando se saturan los electrodos, se cambiará la polaridad del campo magnético.

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3

¿Qué transductores utiliza?

Utiliza los electrodos polarizados, por lo cual se genera un voltaje proporcional a la fuerza del campo fem y a la velocidad del flujo dentro del vaso sanguíneo

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4

Ventajas

Tiempo real No presenta obstrucciones al flujo Evalúa los procedimientos re reconstruccióny revascularización

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5

Desventajas

Invasivo Susceptible a interferencias electromagnéticas Solo mide el flujo de un vaso Calibración constante

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6

Riesgos

Infección Microchoque

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7

Datos obtenidos

Flujo sanguíneo

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8

Principio físico asociado

Ley de Faraday: La fuerza electromotriz inducida en un circuito cerrado es proporcional a la velocidad con la que varía el flujo magnético que lo atraviesa

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