title: Invited commentary.
authors.affiliation: Cardiothoracic Surgery, Medical College of Wisconsin, Milwaukee, WI53226, USA. smasroor@mcw.edu
authors.forename: Saqib
authors.initials: S
authors.lastname: Masroor
mesh_terms: D001021:Aortic Valve / Q000601:surgery; D001024:Aortic Valve Stenosis / Q000000981:diagnostic imaging* / Q000503:physiopathology* / Q000601:surgery; D003326:Coronary Circulation; D004452:Echocardiography; D006801:Humans; D008833:Microcirculation