Inclusion Criteria:  Patient scheduled for aortic valve replacement by TAVI procedure with trans femoral approach Patient with pre-TAVI assessment performed at Clinique Pasteur Patient affiliated or beneficiary of a social security scheme Patient accepting to participate and having given his no objection  Exclusion Criteria:  TAVI procedure by non-trans femoral approach Protected patients: Adults under guardianship or other legal protection; Pregnant or breastfeeding woman; Hospitalized without consent.