Region crossection:Area:Pt:Mitral valve.annulus:Qn:US+Calculated
region crossection:area:pt:mitral valve.annulus:qn:us+calculated
Region crossection:Area:To identify measures at a point in time:Mitral valve.annulus:Quantitative:Ultrasound+Calculated
region crossection:area:to identify measures at a point in time:mitral valve.annulus:quantitative:ultrasound+calculated