Other Modalities Flashcards by Jennifer Montoya

Q

MRI bone color

A

black

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Q

MRI T1 blood vessel color

A

blood vessels black

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Q

MRI T2 CSF color

A

white

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Q

MRI GAD blood vessel color

A

blood vessels white

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Q

MRI Pd shows what color

A

grey everywhere

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Q

CT bone color

A

white

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Q

MRI p+ used for imaging because

A

have highest gyromagnetic ratio of a natural nuclei & are present all over body

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Q

MRI T1 nasal mucosa tint

A

bright

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Q

MRI p+ do what

A

flip and align in correct direction

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Q

MRI p+ T1 demonstrate

A

less flip

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Q

MRI p+ T2 demonstrate

A

more angle

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Q

MRI T1 CSF is ?

A

Black

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Q

MRI T1 fat is ?

A

White

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Q

MRI T1 white matter is ? than grey

A

Brighter

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Q

MRI T2 CSF is ?

A

White

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Q

MRI T2 fat is ?

Study These Flashcards

A

Black

Q

MRI T2 white matter is ? than grey

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A

Darker

Q

CT X coordinate goes how?

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A

L-R

Q

CT Y coordinate goes how

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A

Sup-inf

Q

CT Z coordinate goes how

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A

Ant-post

Q

CT # dense bone

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A

+1000

Q

CT # bone

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A

~ +600

Q

CT # muscle

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A

~ +100

Q

CT # soft tissue/water

Study These Flashcards

A

0

CT # fat

~ -200 to -300

CT # lung

~ -600 to -700

CT # air

-1000

MRI T1 what kind of relaxation time

- spin lattice | - longitudinal

MRI T2 relaxation time

- spin-spin | - transverse

Gadolinium alters

T1 & T2 relaxation time

fMRI determines what activity

Physiologic & neurologic

fMRI detects changes in

Blood flow with specific activity

PET isotope emits

Positron

PET positron collides with tissue and emits

G rays

SPECT demonstrates

Blood flow to tissues and organs