Fallacies of assessing mitral valve area by planimetry in 2-D echocardiography

Fallacies of assessing mitral valve area by planimetry in 2-D echocardiography

Fallacies of assessing mitral valve area by planimetry in 2-D echocardiography include:

  1. Inability to get a cut at the tip of the funnel.
  2. Inability to get a cut parallel to the orifice (perpendicular to the funnel).
  3. Limitation in immediate post BMV cases due to the split confounding the planimetry assessment.
  4. Inability to get a full circle at the right time of the cardiac cycle.
  5. Excessive gain can cause blooming in and overestimation of severity.

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