title: Invited commentary.
authors.affiliation: Department of Anesthesia, University of Manitoba, I.H. Asper Clinical Research Institute, CR3008-369 Tache Ave, Winnipeg, MBR2H 2A6, Canada. hgrocott@sbgh.mb.ca
authors.forename: Hilary P
authors.initials: HP
authors.lastname: Grocott
mesh_terms: D001921:Brain / Q000473:pathology*; D003072:Cognition Disorders / Q000175:diagnosis* / Q000209:etiology*; D001026:Coronary Artery Bypass / Q000009:adverse effects*; D038524:Diffusion Magnetic Resonance Imaging; D006801:Humans; D013997:Time Factors