Imaging The Brain And Spinal Cord

Question 1

Why do we plain films?

Answer 1

Good spatial resolution and cheaper

Question 2

Spatial resolution?

Answer 2

Differentiation of 2 objects that are near by e.g CT

Question 3

Contrast resolution?

Answer 3

Ability to distinguish between differences in intensity in an image, e.g MRI

Question 4

Sylvia fissure?

Answer 4

Divides frontal and temporal lobe

Question 5

Sub-arachnoid haemorrhage cause?

Answer 5

Berry aneurysm

Question 6

Subdural haematoma clinical patient?

Answer 6

Old, not always trauma because confused, causing stoke.

Brain shrinks, vessels weak

Question 7

Cistern?

Answer 7

Spaces with CSF

Question 8

Bovine arch?

Answer 8

Aortic arch most common variant, brachiocephalic and left common carotid same branch

Question 9

How many people have normal circle of Willis?

Answer 9

40%

Question 10

Joining of all sinuses?

Answer 10

Torcular

Question 11

How to treat MCA infarct?

Answer 11

Thrombolysis

Question 12

Thrombolyse time window

Answer 12

4.5 hours

Question 13

Which scan is better for acute stroke?

Answer 13

MRI

Question 14

Better for bleeds scan?

Answer 14

CT

Question 15

Ligaments in spine?

Answer 15

Anterior longitudinal, posterior longitudinal, ligamentum flavum and inters-ominous ligament

Question 16

What does transverse ligament do?

Answer 16

Holds the Alanto axial joint together

Question 17

Blunt trauma to head?

Answer 17

Extradural haematoma