Lecture 23 - Neuroradiology

Question 1

Risks of of Gadolinum?

Answer 1

deposits in brain & bones

Question 2

CT sign of stroke?

Answer 2

loss of grey & white matter discrimination

Question 3

usefullness of contrast?

Answer 3

pathologies tend to have leaky vessels (stroke or tumour)

Question 4

Epidural bleed?

Answer 4

traumatic collection of blood between inner skull and dura, middle meningeal artery, lentiform shape

Question 5

Subdural bleed?

Answer 5

traumatic injury to veins between dura mater and arachnoid collecting in subdural space, screscent shape

Question 6

Subarachnoid haemorrhage?

Answer 6

hypertension and aneurysm of cerebral vessels

Question 7

Tumours?

Answer 7

glioblastoma multiforme (most common, surrounding oedema), meningioma (from meninges, benign),

Question 8

T1 MRI?

Answer 8

CSF hypointense, fat hyperintense (T2 opposite)

Question 9

Colourful white matter screening?

Answer 9

DTI tractography, trace axon bundles

Question 10

CTI vs MRI for screens?

Answer 10

CT: bone recon, angio; MRI: spine imaging; both: stroke