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ECOS 1 Post-Midterm > Neuro Imaging > Flashcards

Neuro Imaging Flashcards

1
Q

Brain imaging modalities?

A

CT and MRI

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2
Q

Advantages of Computer Tomography

A

Fast and good for trauma situations and imaging fractures/brain bleeds

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3
Q

Disadvantages of Computer Tomography

A

Can’t detect acute ischemic stroke

Lower resolution of brain

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4
Q

What does an Epidural hematoma look like on CT?

A

Elliptical shape/lemon shape

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5
Q

Epidural hematoma sequence of events

A

Head trauma
Loss of consciousness
Lucid
Unconscious again

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6
Q

What does a Subdural hematoma look like on CT?

A

Banana/crescent shape and possible brain tissue herniation

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7
Q

Advantages of Magnetic Resonance Imaging

A

Highest resolution, good for soft tissue lesions

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8
Q

Disadvantages of Magnetic Resonance Imaging

A

Slow, no metal implants except aneurysm clips, sensitive to motion, not good for bone lesions

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9
Q

What are the types of different sequences for MRI?

A

T1, T2, T2-FLAIR

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10
Q

What are the qualities of a T1 MRI?

A

White matter is white
Grey matter is grey
CSF and inflammation are dark

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11
Q

What are the qualities of a T2 MRI?

A

White matter is dark
Grey matter is light
CSF and inflammation are bright

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12
Q

What is a T2 MRI good for?

A

Seeing demyelination

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13
Q

What are the qualities of a T2-FLAIR MRI?

A

Same as normal T2 except that CSF is now dark in order to visualize inflammation near the ventricles

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14
Q

What does a functional MRI do?

A

Maps out brain activity by detecting changes in blood flow

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15
Q

What is contrast used to see?

A

Disruptions in the BBB

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16
Q

What does contrast cause?

A

Kidney damage

17
Q

What is the purpose of a fluoroscopy swallow study?

A

Look for neuro issues related to swallowing; video is recorded and pt drinks radio-opaque material

18
Q

What is the purpose of myelography?

A

Dye injected below dura

Helps visualize space between nerves and structures around like in cases for spondylosis or spinal stenosis

19
Q

What is a test you could do to assess arterial blood supply to the brain and look for plaque build-up?

A

Carotid ultrasound - uses echolocation to produce an image

20
Q

What else is an ultrasound good for?

A

Guiding needles during procedures

21
Q

Purpose of EEG?

A

Confirm seizure activity

22
Q

Purpose of EMG (electromyogram)?

A

Assessing peripheral nerves and muscles

23
Q

Purpose of fluorescein stain?

A

Look for corneal damage of the eye or foreign bodies

ECOS 1 Post-Midterm (9 decks)

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