GORE Flow Reversal System and GORE Embolic Filter Extension Study

Inclusion Criteria: * Patient, or patient's legal representative, is able and willing to provide informed consent. * Patient must be at least 18 years of age or older. * Patient will be selected and treated according to the GORE Flow Reversal System Instructions for Use (IFU) or the GORE Embolic Filter IFU. Exclusion Criteria: * Patient is contraindicated for the embolic protection device arm they are selected by the investigator to receive: Either Per the GORE Flow Reversal System IFU if the GORE Flow Reversal System is selected OR Per the GORE Embolic Filter IFU if the GORE Embolic Filter is selected If the patient is contraindicated for both arms (devices) they may not be enrolled.