tomografia computada Flashcards

1
Q

tomos significa

A

corte

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2
Q

antes se llamaba tac por que unicamente daba

A

cortes axiales
ahora es un termino obsoleto

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3
Q

es

A

helicoidal

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4
Q

tiene angulacion

A

gantry

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5
Q

grantry contiene

A

tubos de rayos x de un lado (1 a 500)
y detectores de otro

los tubos disparan rayos x y giran con los detectores para obtener los cortes

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6
Q

grantry contiene

A

una mesa desplazable dentro

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7
Q

equivalen a

A

mucha radiacion y helicoidal

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8
Q

entre mas cantidad de detectores

A

> rapidez
< radiación
= calidad de imagen

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9
Q

es una recontruccion

A

multiplanar y volumetrica que permite manipulacion de la imagen, cambio de contraste y el brillo (ventaneo)

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10
Q

la anatomia se evalua de manera

A

multiplanar

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11
Q

permite la

A

navegacion y endoscopia virtual

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12
Q

pros

A

metodo cuantitativo y cualitativo
mucha informacion anatomica
urotac
gran resolucion
rapido y excelente en urgencias
alta sensibilidad y especificidad

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13
Q

contras

A

contraindicada en embarazo
costo
medianamiente accesible
artificios
gran cantidad de protocolos y homogeneidad
interpretacio pos espcialistas
utilidad limitada en partes blandas

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