Non-contrast CT are good for and bad for
Bad: ischemic changes
good: intracranial hemmorrage
CT Angiography is used for
circulation
location of occlusion
Perfusion CT is used
used for patients unable to undergo MRI
the difference in core vs penumbra
functional map of cerebral blood volume, blood flow, and a time difference
MRI is used for
ischemic tissues changes within a few hours of incident
Perfusion/diffusion detects
Salvagebale/unrecoverable