Number of participants who experienced a major adverse event (MAE) 0-30 days post-procedure. MAE was defined as add death, stroke, and myocardial infarction(MI).

All 1097 enrolled participants were considered for analysis. A total of 1025 subjects were evaluable for MAEs. Seventy two participants were not evaluable for MAEs; 32 participants were not evaluable because the follow-up occurred less than 23 days from enrollment and 40 participants did not complete the expected follow-up.

Adverse events, serious and non-serious, were reported by all study centers. Device related adverse events were defined as any adverse event related the study device as determined by the (Principal Investigator)PI. Procedure related adverse events were defined as any adverse event related the study procedure as determine by the PI. Unrelated adverse events were determined by the PI to not be related to the study device or study procedure.

Number of participant with any surgical or percutaneous attempt to revascularize the target lesion after the initial treatment. The target lesion was defined as the stented segment including 0.5 cm at the proximal and distal margins of the stented segment.

System technical success included successful delivery and deployment of the FilterWire EZ System beyond the target lesion site, delivery and deployment of the Carotid WALLSTENT Endoprosthesis at the intended location, and successful retrieval of the delivery catheter and FilterWire EZ System after stent placement. System technical success rates was calculated based on the number of participants who had both the FilterWire EZ System and Carotid WALLSTENT Endoprosthesis placement attempted.

To be evaluable for system technical success, subjects needed to have a Carotid WALLSTENT deployment attempted.

Device Malfunction was defined as a failure of the device to meet performance specifications or otherwise perform as intended.