The area of the mitral orifice is measured planimetrically using two-dimensional echocardiography from the left parasternal position, short axis of the heart at the level of the mitral valve (at the moment of maximum opening of the leaflets). The contour of the orifice is outlined with the cursor (tracing). The ultrasound device will automatically calculate the area.

Assessment of the mitral stenosis using planimetry can be divided into the following steps:

• The image must first be acquired from the Left Parasternal Position, at the Level of the Papillary Muscles.
• Then rotate the transducer until the end of the mitral leaflets is imaged. In this case, the area of the mitral orifice is minimal.
• Freeze the image in the early diastole phase.
• Make a tracing of the mitral valve along the internal borders.

 

Left Parasternal View, Short axis at the level of the mitral valve. Tracing of the Mitral Valve. Simulation By Echocardiography Online Simulator MyEchocardiography.com

 

ASE Guideline for Assessment degree of Mitral Stenosis

 

 

How to Simulate Measurement of the Mitral valve area by trasing?

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