avbildninagar Flashcards

1
Q

vilka typer av DT finns det

A

utan konstrast - blödning
med kontrast - tumör
angiografi - aneurysm, tromb, sinustrombos
perfusion - interventioner

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2
Q

T1 +- kontrast

A

anatomi
fett ljust vatten mörkt
tumör kan ladda kontrast

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3
Q

t2

A

patologi, men ospecifikt
färg omvänt t1 dvs vatten ljuset
- ingen kontrast

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4
Q

FLAIR

A

ödemkänsligt

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5
Q

DWI

A

bra vid ishcemi misstanke

diffa mellan cytotoxiska och vasogena ödem, samt abcess/tumör etc
- vattenmolekylers diffusion

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6
Q

spektroskopi

A

metaboliter kemiskt undersöks varpå man kan diffa mellan pataolgier

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7
Q

vad är syftet med kontrast

A

framhäva skillnad mellan pixlar och voxlar i en bild för att bättre kunna diffa mellan olika vävnadstyper

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8
Q

akut stroke

A

DT

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9
Q

akuta trauman

A

DT - känsligare för små slitskador i parenkym

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10
Q

tumör

A

DT screening, MR exakt

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11
Q

aneurysm

A

DT i artärfas

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12
Q

sinustrumb

A

DT angiografi i venfas (eller MR angio)

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13
Q

Barn

A

Dt trauma, annars MR pga strålning

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