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CLASP Applied Anatomy & Radiology (Y3) > Brain Radiology > Flashcards

Flashcards in Brain Radiology Deck (43)
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1

The arrows point to which structures?

Frontal lobe

Parietal lobe

Occipital lobe

2

The arrows point to which structures?

Temporal lobe

Cerebellum

3

The arrows point to which structures?

Interhemispheric fissure

Anterior horn of the lateral ventricle

4

The arrows point to which structures?

Suprastellar cistern

Quadrigeminal cistern

5

What is the blue section?

Parietal lobe

6

What is the pink section?

Midbrain

7

How can you determine the side of an image?

Patient facing you or feet first

8

In a T1-weighted image, fluid is...

Black

9

In a T2-weighted image, fluid is...

White

10

What are the 3 causes of stroke?

Embolism, thrombosis or arterial dissection

11

Face, leg, arm weakness suggests that which territory is affected?

Middle cerebral artery

12

Which artery is most commonly dissected?

Vertebral artery

13

Which imaging modality should be used in stroke?

Non-contrast enhanced CT

14

How long after the onset of symptoms of stroke can thrombolysis be given?

Up to 4.5 hours

15

What is the earliest sign of a stroke on CT?

  • thrombus in vessel – hyperdense

16

What does this show?

Thrombus in middle cerebral artery

17

Which changes occur in infarct stroke after a few hours on CT?

loss of grey-white matter differentiation & hypoattenuation of deep nuclei, wedge-shape, swelling

18

Which process occurs long-term in an infarct?

Liquefactive necrosis - gliosis

19

What is meant by an intra-cranial haemorrhage?

within the brain substance

20

Where is a sub-dural haemorrhage?

Between dura and arachnoid mater

21

How does a subdural haemorrhage occur?

Tearing of bridging veins

22

In which groups do subdural haemorrhages occur?

  • Usually in elderly
  • Infants – NAI

23

Which type of haemorrhage will cross sutures but not the midline?

Subdural

24

Which pathology is shown here?

Intra-cerebral haemorrhage

25

Which pathology is shown here?

Extra-dural haemorrhage

26

What is the pathology?

Subdural haemorrhage

27

How does a subdural haemorrhage change over time?

  • Isodense homogenous over time
  • Chronic – hypodense

28

Which pathology is seen here?

Acute on chronic sub-dural haemorrhage

29

Which type of bleed will not cross suture lines?

Extra-dural

30

Which type of bleed is associated with a lucid interval?

Extra-dural