Abstract:
:Revascularization time windows for patients with acute ischemic stroke are generally restricted to 8 hours. Later treatment attempts require more accurate prediction of risk and benefit, as safety and efficacy at these time strata are less well demonstrated. Advanced imaging techniques identify irreversible infarction as well as tissue at risk. Diffusion-weighted MRI detects ischemia within minutes of onset, whereas perfusion-weighted MRI and CT perfusion studies disclose the ischemic penumbra. Combined, they provide information on mismatched tissue-potentially salvageable brain. In addition, noninvasive angiography is a useful adjunct to localize arterial occlusion.
journal_name
Neurologyjournal_title
Neurologyauthors
Janjua Ndoi
10.1212/WNL.0b013e3182695826subject
Has Abstractpub_date
2012-09-25 00:00:00pages
S95-9issue
13 Suppl 1eissn
0028-3878issn
1526-632Xpii
79/13_Supplement_1/S95journal_volume
79pub_type
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