Stroke and Interventional Radiology Flashcards
1
Q
What are common causes of large vessel ischemic stroke?
A
Emboli (30-40%) mainly from heart or carotid arteries. Also, atherosclerosis or aneurysm
2
Q
What is the therapy for acute stroke?
A
IV tpa within 3 hours of onset of symptoms and intra-arterial therapy with stent retrievers within 6 hour window (Screen with noninvasive imaging)
3
Q
What determines the success of TPA?
A
the length of the clot
4
Q
What is the most sensitive way to look for an acute stroke?
A
Diffusion weighted imaging- should see bright signal
5
Q
What does a CT perfusion look at?
A
How contrast flows through a brain tissue- Cerebral blood volume and mean transit time. If these do not match, it probably means that there is still some viable tissue
