title: Assessment of valvular heart disease with combined echocardiographic and Doppler spectrum techniques: an alternative to preoperative catheterization?
mesh_terms: D000328:Adult; D001022:Aortic Valve Insufficiency / Q000175:diagnosis; D001024:Aortic Valve Stenosis / Q000175:diagnosis; D006328:Cardiac Catheterization; D004452:Echocardiography; D005260:Female; D006349:Heart Valve Diseases / Q000175:diagnosis* / Q000601:surgery; D006350:Heart Valve Prosthesis; D006439:Hemodynamics; D006801:Humans; D008297:Male; D008944:Mitral Valve Insufficiency / Q000175:diagnosis; D008946:Mitral Valve Stenosis / Q000175:diagnosis; D012212:Rheology