title: Invited commentary.
authors.affiliation: Cardiovascular Surgery Discipline, Escola Paulista de Medicina, Federal University of São Paulo, Rua Botucatu, 740, São Paulo-SP04023-900, Brazil. wjgomes.dcir@epm.br
authors.forename: Walter J
authors.initials: WJ
authors.lastname: Gomes
mesh_terms: D050197:Atherosclerosis / Q000000981:diagnostic imaging / Q000209:etiology*; D001026:Coronary Artery Bypass; D006801:Humans; D017534:Radial Artery / Q000637:transplantation*; D020858:Tissue and Organ Harvesting / Q000009:adverse effects*; D017535:Ulnar Artery; D014463:Ultrasonography