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Control and Movement 2 > Control Practical: Brain imaging > Flashcards

Control Practical: Brain imaging Flashcards

1
Q

Which of CT and MRI uses high levels of radiation?

A

CT

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2
Q

Which of CT and MRI is more expensive to run?

A

MRI

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3
Q

Name a relative contraindication for CT scans

A

Pregnancy

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4
Q

Name an absolute and a relative contraindication for MRI scans

A

Absolute: Metal implants eg. pacemakers
Relative: Claustrophobia

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5
Q

Which of MRI and CT gives the best detail on bone?

A

CT

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6
Q

Which of MRI and CT gives the best detail on soft tissue?

A

MRI

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7
Q

Would soft tissue be better seen on a low or a high window CT scan?

A

Low

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8
Q

Would a T1 or T2 sequence be used to see contrast in the bloodstream on an MRI scan?

A

T1

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9
Q

Is bone dark or light on MRI scans?

A

Dark

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10
Q

Is air dark or light on a T1 MRI?

A

Dark

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11
Q

Is air dark or light on a T2 MRI?

A

Dark

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12
Q

Is fat dark or light on a T1 MRI?

A

Light

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13
Q

Is fat dark or light on a T2 MRI?

A

Dark

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14
Q

Is fluid dark or light on a T1 MRI?

A

Dark

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15
Q

Is fluid dark or light on a T2 MRI?

A

Light

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16
Q

What is the most inferoposterior lobe of the cerebrum?

A

Occipital

17
Q

What is the most superoposterior lobe of the cerebrum?

A

Parietal

18
Q

In which MRI sequence would white matter appear darker than grey matter?

A

T2

19
Q

What does TAC stand for in the Bamford/Oxford stroke classification?

A

Total anterior cirulation

20
Q

What does PAC stand for in the Bamford/Oxford stroke classification?

A

Partial anterior circulation

21
Q

What does LAC stand for in the Bamford/Oxford stroke classification and what arteries are affected in a lacunar stroke?

A

Lacunar

Penetrating arteries

22
Q

What does POC stand for in the Bamford/Oxford stroke classification?

A

Posterior circulation

23
Q

Is CT or MRI primarily used for stroke imaging?

A

CT

24
Q

In a haemorrhagic stroke, would the main bleed appear bright or dark?

A

Bright

25
Q

In an ischaemic stroke, would the main bleed appear bright or dark?

A

Dark

26
Q

In an ischaemic stroke, would the thrombus appear bright or dark?

A

Bright

27
Q

Do acute haemorrhages appear brighter or darker than chronic ones in a CT?

A

Brighter

28
Q

In what kind of haemorrhage would the blood outline the sulci and gyri of the cerebrum?

A

Subarachnoid

29
Q

Which kind of intracranial haemorrhage is almost always caused by trauma and would be characterised by unconsciousness following a lucid interval?

A

Extradural

30
Q

What does ‘contrecoup’ mean in terms of a coup-contrecoup injury?

A

Contralateral subdural or subarachnoid haemorrhage due to trauma

Control and Movement 2 (22 decks)

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