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Related Experiment Videos

Morphometric investigations in mitral stenosis using two dimensional echocardiography

P Schweizer, P Bardos, W Krebs

    British Heart Journal
    |July 1, 1982
    PubMed
    Summary

    Comparing preoperative echocardiograms with excised mitral valves shows good agreement in orifice size and shape. This method aids in planning surgical treatment for stenotic mitral valves.

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    Area of Science:

    • Cardiology
    • Medical Imaging
    • Surgical Planning

    Background:

    • Stenotic mitral valves require accurate assessment for effective surgical planning.
    • Preoperative imaging modalities like two-dimensional echocardiography are crucial for evaluating valve morphology and orifice size.

    Purpose of the Study:

    • To develop and validate a method for comparing preoperative two-dimensional echocardiographic (2DE) findings with the actual morphology and orifice size of excised stenotic mitral valves.
    • To assess the accuracy of 2DE in determining valve area, shape, and calcification patterns.

    Main Methods:

    • Excised mitral valve apparatus suspended and stabilized with an air-filled balloon to prevent shrinkage.
    • Radiography taken perpendicular to the valve orifice.
    • Planimetry of valve area and comparison of orifice shape with preoperative 2DE cross-sections.

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  • Evaluation of calcification localization and degree using 2DE and post-excision radiography.

    • Main Results:

    • The proposed method allowed correlation between 2DE cross-sections and valve morphology in 40 of 51 patients.
    • Planimetry of valve area showed favorable comparison with postoperative orifice size.
    • Agreement in orifice shape between preoperative echocardiograms and excised valve X-rays was found in 34 of 40 patients.
    • Calcification localization and degree showed agreement with post-excision X-rays in 75% and 67% of patients, respectively.

    Conclusions:

    • The method provides a reliable means to compare preoperative 2DE assessments with the actual morphology of stenotic mitral valves.
    • 2DE accurately assesses valve area, shape, and calcification, aiding in surgical planning.
    • This technique enhances the understanding of valve pathology and improves preoperative surgical strategy.