Further results have confirmed the benefit of thrombolysis up to 9 hours after onset of ischemic stroke in patients with salvageable brain tissue identified by mismatch on CT perfusion imaging.

Stroke patients selected for thrombectomy using simple noncontrast CT had a similar rate of good outcomes as those selected by the more sophisticated CT perfusion imaging, in a new study.

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The sensitivity of CT angiography ranged from 75.5 to 87.3 percent, and specificity varied from 89.7 to 91.0 percent.