1. PET Imaging of Stroke Physiology and Carotid Artery Occlusive Disease (Derdeyn and Powers) 2. Noninvasive Carotid Evaluation: NASCET, ACAS, and Beyond (Romero, Lev and Ackerman) 3. Cerebrovascular Reserve (Eskey) 4. State of the Art Carotid Stenting (Cullen) 5. Unenhanced CT and Acute Stroke Physiology (Kucinski) 6. IV Recanalization Strategies: Clinical Trials and Imaging Triage (H. Roberts and T. Roberts) 7. IA Recanalization Strategies: Clinical Trials and Imaging Triage (Farkas) 8. TCD and Enhanced IV Thrombolysis (Coutts and Demchuk) 9. CTA/CTP Acute Stroke Imaging (Vu and Lev) 10. DWI/MRP Acute Stroke Imaging (Copen, Schaefer and Gonzalez) 11. Xenon CT Acute Stroke Imaging (Jovin and Yonas) 12. SPECT Acute Stroke Imaging (Yu) 13. Collateral Flow (Liebiskind) 14. Extending the Time Window for Thrombolysis: DIAS, EPITHET, and other Trials (Rowley)