Tuesday, May 31, 2016

Aging of stroke


Time
DWI
ADC
T2
CT
30 mins
First becomes visible - bright
First starts to become visible – dark – in animal stroke models ADC changes visible in < 5 mins
Invisible
invisible
6-8 hours
Clearly Bright
Clearly Dark
First starts to become visible – bright (edema)
First start to become visible - loss of grey-white, insular ribbon, etc
24 hours
Clearly Bright
Clearly Dark
Clearly bright
Clearly dark
1-4 days
Clearly Bright
Max darkness
Clearly bright
Clearly dark
7 days
Max brightness
Clearly dark
Clearly bright
Clearly dark
10-15 days
Signal starts to fade
Reverses from dark to bright, sometimes becomes invisible
Clearly bright
Clearly dark
2-3 weeks
Signal fading/reversing
Becomes bright
Clearly bright
Clearly dark
>30 days
Dark
bright
Max brightness
Clearly dark

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