title: Significant narrowing of the aortic homograft in the aortic ascendens position.
authors.affiliation: Department of Congenital Heart Diseases, Institute of Cardiology, Warsaw, Poland.
authors.forename: Piotr
authors.initials: P
authors.lastname: Dobrowolski
authors.affiliation: Department of Congenital Heart Diseases, Institute of Cardiology, Warsaw, Poland.
authors.forename: Mirosław
authors.initials: M
authors.lastname: Kowalski
authors.affiliation: Department of Radiology, Medical University of Warsaw, Warsaw, Poland.
authors.forename: Ilona
authors.initials: I
authors.lastname: Michałowska
authors.affiliation: Department of Congenital Heart Diseases, Institute of Cardiology, Warsaw, Poland.
authors.forename: Piotr
authors.initials: P
authors.lastname: Hoffman
mesh_terms: D000328:Adult; D064591:Allografts; D001013:Aorta, Thoracic / Q000000981:diagnostic imaging*; D001021:Aortic Valve / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000601:surgery; D001024:Aortic Valve Stenosis / Q000175:diagnosis*; D002114:Calcinosis / Q000175:diagnosis*; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008297:Male; D011475:Prosthesis Failure; D012720:Severity of Illness Index; D014057:Tomography, X-Ray Computed / Q000379:methods*