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Imaging > MRI Sequences > Flashcards

MRI Sequences Flashcards

1
Q

what is STIR

A

short tau inversion recovery
fat suppressed
water/fluid high

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2
Q

advantages of STIR

A

great contrast resolution
use with low field strength magnets

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3
Q

disadvantages of STIR

A

hemorrhage & protein rish fluid may be suppressed
cannot be used after contrasted injected
image more grainier

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4
Q

what is STIR good for

A

spine, msk imaging, brachial/lumbar plexus, abdominal, chest imaging, tumor detection

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5
Q

what is FLAIR

A

fluid attenuated inversion recovery
signal from fluid CSF is suppressed

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6
Q

what can a FLAIR appear similar to

A

T1 image

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7
Q

on a FLAIR, CSF will appear what

A

dark

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8
Q

FLAIR is helpful w identifying what

A

infarction
demylination
meningities
TBI

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9
Q

what is PD

A

proton density weighted
spine-echo
shares T1 & T2 features

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10
Q

fat and fluid will appear what on a PD image

A

bright

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11
Q

PD image is helpful w what

A

brain and msk imaging esp in extremities
- well btw fluid, hyaline cartilage, fibrocartilage

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Imaging (21 decks)

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