Optimization of perfusion imaging for acute cerebral ischemia: Review of recent clinical trials and recommendations for future studies

OBJECTIVE. The use of thrombolytic agents and other forms of reperfusion therapy has provided a means to reverse ischemia and minimize the size of infarctions. The purpose of this review is to examine various clinical trials of reperfusion agents and address key imaging issues. CONCLUSION. Advanced MRI and CT play a growing role in selection of patients for therapy. Numerous clinical trials have shed light on the efficacy of various reperfusion therapies; disparities in trial design have also left unanswered questions.