Volume 11, Issue 9, Pages 755-763 (September 2012) Restenosis after carotid artery stenting and endarterectomy: a secondary analysis of CREST, a randomised controlled trial  Brajesh K Lal, MD, Prof Kirk W Beach, MD, Prof Gary S Roubin, MD, Prof Helmi L Lutsep, MD, Prof Wesley S Moore, MD, Mahmoud B Malas, MD, David Chiu, MD, Nicole R Gonzales, MD, J Lee Burke, MD, Michael Rinaldi, MD, James R Elmore, MD, Prof Fred A Weaver, MD, Craig R Narins, MD, Malcolm Foster, MD, Prof Kim J Hodgson, MD, Alexander D Shepard, MD, Prof James F Meschia, MD, Robert O Bergelin, MS, Jenifer H Voeks, PhD, George Howard, DrPH, Prof Thomas G Brott, MD  The Lancet Neurology  Volume 11, Issue 9, Pages 755-763 (September 2012) DOI: 10.1016/S1474-4422(12)70159-X Copyright © 2012 Elsevier Ltd Terms and Conditions

Figure 1 Kaplan-Meier graph showing proportion of patients with restenosis or occlusion More patients are included in this analysis than are listed in table 1 because some had ultrasonography at 36 or 48 months but not at 24 months. Day 0 is the date of the relevant procedure. The Lancet Neurology 2012 11, 755-763DOI: (10.1016/S1474-4422(12)70159-X) Copyright © 2012 Elsevier Ltd Terms and Conditions

Figure 2 Frequency of restenosis after carotid artery stenting or endarterectomy with different PSV thresholds Bars indicate SE. PSV=peak systolic velocity. The Lancet Neurology 2012 11, 755-763DOI: (10.1016/S1474-4422(12)70159-X) Copyright © 2012 Elsevier Ltd Terms and Conditions