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