C: Brain imaging Flashcards Preview

Year 2 Term 2 C&M > C: Brain imaging > Flashcards

Flashcards in C: Brain imaging Deck (19):
1

What kind of imaging is used in strokes and why?

Usually CT due to higher availability and speed
Done to exclude haemorrhage and prove ischaemic stroke

2

What is a lacunar stroke?

Stroke which affects a smaller area - hand and arm affected rather than full hemiparesis

3

What are the 6 symptoms of cerebellar infract, are they ipsilateral or contralateral? (DANISH)

1) Dysdiadokinesis
2) Ataxia - loss of control of bodily movements
3) Nystagmus
4) Intention tremor
5) Slurred speech
6) Hypotonia - low muscle tone

4

What would be the main symptoms of a large right sided infarct due to MCA blockage? 4

1) Aphasia - loss of speech
2) Inattention - right side to do with spatial awareness
3) Left sided hemiparesis and hemiarthresia
4) L homogenous hemianopia - loss of left visual field

5

What would be the clinical presentation of a left cerebellar infarct? 2

1) Inattention
2) Incoordination

6

If a patient has a internal carotid artery blockage what is the likely prognosis and GCS score?

Very low GCS score
Death is highly likely

7

What are 2 risk factors for bleeding in the basal ganglia region?

1) Anti coagulants eg. warfarin
2) Bleeding disorders

8

What 3 symptoms does a subarachnoid haemorrhage present with?

1) Thunderclap headache - horrendous headache, blood irritates the meninges
2) Vomiting
3) Low GCS

9

What artery is commonly ruptures in extradural haemorrhage?

Middle meningeal artery

10

How is an extradural haemorrhage treated?

With burr hole surgery

11

What is the common clinical presentation of an extradural haemorrhage?

Trauma followed by a lucid interval (temporary improvement in patients condition) followed by a loss of conciousness

12

What is a contre-coup injury?

Get soft tissue injury on one side, hit to that side causes brain to hit opposite side of skull and get bleed on other side of the brain

13

Subdural haemorrhage is usually caused by what?

Tearing of bridging veins which cross the subdural space

14

How does a subdural haemorrhage present?

Gradual increase in headache and confusion

15

Give 3 risk factors for subdural haemorrhage?

1) Elderly
2) Traumatic
3) Alcoholics

16

If a patient presented with changes in personality and disinhibition, where is the lesion most likely to be?

In the frontal cortex

17

Infarction of the midbrain would cause what syndrome?

Locked in syndrome

18

Why is vision and hearing unaffected in a midbrain infarct?

Because CN1 and CN2 come off the brain above the brainstem

19

A right occipital infarct would cause what syndrome?

Charles Bonnay syndrome - left homonymous hemianopia (primary visual cortex is in the occipital lobe)