title: Sound pressure analysis for the early detection of prosthetic valve obstruction.
authors.forename: Dieter
authors.initials: D
authors.lastname: Horstkotte
authors.forename: Cornelia
authors.initials: C
authors.lastname: Piper
mesh_terms: D001021:Aortic Valve / Q000503:physiopathology* / Q000601:surgery; D042241:Early Diagnosis; D006331:Heart Diseases / Q000175:diagnosis* / Q000209:etiology; D006347:Heart Sounds / Q000502:physiology*; D006350:Heart Valve Prosthesis; D006801:Humans; D011475:Prosthesis Failure; D012815:Signal Processing, Computer-Assisted; D013018:Sound Spectrography / Q000379:methods*; D013927:Thrombosis / Q000175:diagnosis* / Q000209:etiology; D017725:Ventricular Pressure