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OTDV 528 > Introduction to Neural Imaging > Flashcards

Introduction to Neural Imaging Flashcards

1
Q

scan that produces images of the CNS in sections that have a reasonably high resolution with differentiation of grey & white matter structures

A

MRI

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2
Q

2 primary types of MRI’s

A
  1. T1 - fast resonance
  2. T2 - fast resonance
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3
Q

fields are enhance by radio frequency pulse

A

T1 - fast resonance (MRI)

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4
Q

fields are canceled by radio frequency pulse

A

T2 - slow resonance (MRI)

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5
Q

what white matter looks like in T1 MRI

A

light grey

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6
Q

what white matter looks like in a T2 MRI

A

dark grey

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7
Q

enhanced tumor in a T1 MRI is what color?

A

white

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8
Q

enhanced tumor in a T2 MRI is what color?

A

rarely done

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9
Q

dark grey

A

edema (blood) in a T1 MRI is what color?

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10
Q

edema (blood) in a T2 MRI is what color?

A

light grey to white

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11
Q

grey matter in a T1 MRI is what color?

A

dark grey

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12
Q

grey matter in a T2 MRI is what color?

A

light grey

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13
Q

fat in a T1 MRI is what color?

A

white

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14
Q

fat in a T2 MRI is what color?

A

grey

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15
Q

CSF in a T1 MRI is what color?

A

very black

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16
Q

CSF in a T2 MRI is what color?

A

very white

17
Q

___ is very black in a T1 & T2 MRI

A

bone & air

18
Q

__ is dark grey in a T1 & T2 MRI

A

muscles

19
Q

___ is dark grey in a T1 MRI

A

acute infarct, subactue infarct, acute ischemia, subacute ischemia

20
Q

___ is light grey to white in a T2 MRI

A

acute infarct, subactue infarct, acute ischemia, subacute ischemia

21
Q

variable color for a T1 & T2 MRI is what

A

tumor

22
Q

substance that allows visualization of the vascular pattern in the brain and also enhances tumors that lack a blood brain barrier

A

gadolinium compound

23
Q

visualization of myelinated axonal pathways in the brain and spinal cord

A

Diffusion Tensor Imaging

24
Q

Detects radioactive precursors introduced into the brain

A

SPECT/PET (single photon/positron emission computed tomography)

25
Q

Flow of blood can be detected with MRI from paramagnetic effects of what?

A

deoxygenated hemoglobin

26
Q

Radioactive substance that emits a position on decay

A

PET Scan

27
Q

looking from the patient’s feet

A

Axial observer

28
Q

looking at the patients face

A

Coronal observer

29
Q

Cerebral Vasculature can be imaged by

A

MRI and cerebral angiography

OTDV 528 (11 decks)

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