title: Reliability and reproducibility of two dimensional echocardiograph measurement of the stenotic mitral valve orifice area.
mesh_terms: D006328:Cardiac Catheterization; D004452:Echocardiography / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D008943:Mitral Valve / Q000473:pathology*; D008946:Mitral Valve Stenosis / Q000175:diagnosis*; D008954:Models, Biological