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Related Experiment Videos

Mitral valve regurgitation--quantification by Doppler echo (quantitative versus semi-quantitative methods).

Jorge Almeida1, Albino Santos, Tãnia Nolasco

  • 1Centro de Cirurgia Torácica do Hospital de S. João, Porto.

Revista Portuguesa De Cardiologia : Orgao Oficial Da Sociedade Portuguesa De Cardiologia = Portuguese Journal of Cardiology : an Official Journal of the Portuguese Society of Cardiology
|November 1, 2003
PubMed
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The PISA method shows higher accuracy than semi-quantitative jet area for grading mitral regurgitation severity. This quantitative approach offers improved diagnostic performance for mitral regurgitation compared to traditional methods.

Area of Science:

  • Cardiology
  • Echocardiography
  • Medical Imaging

Background:

  • Mitral regurgitation quantification is challenging, with volumetric methods being time-consuming.
  • Semi-quantitative analysis is common but has limitations.
  • The PISA method offers a quantitative alternative for measuring regurgitant volume (RV) and effective regurgitant orifice (ERO).

Purpose of the Study:

  • To compare the correlation and agreement between the PISA method and volumetric analysis for mitral regurgitation quantification.
  • To assess the correlation between semi-quantitative parameters and quantitative methods.
  • To evaluate the diagnostic performance of PISA and semi-quantitative analysis in grading mitral regurgitation severity.

Main Methods:

  • Seventy-seven patients with moderate to severe mitral regurgitation underwent echocardiography.

Related Experiment Videos

  • Quantitative analysis using the volumetric method and the PISA method were performed.
  • Semi-quantitative jet area (JA) was also assessed.
  • Receiver Operating Characteristic (ROC) curve analysis was used for performance evaluation.

    • Main Results:

    • Good correlations were observed between RV (r=0.81) and ERO (r=0.85) from PISA and volumetric methods, though agreement varied, especially in degenerative prolapse.
    • Jet area showed satisfactory correlation but tended to underestimate eccentric jets and overestimate central jets.
    • PISA ERO demonstrated higher accuracy than JA in identifying mild (AUC 0.93 vs. 0.80) and severe (AUC 0.95 vs. 0.81) mitral regurgitation.

    Conclusions:

    • The PISA method provides a reliable quantitative assessment of mitral regurgitation.
    • PISA method shows superior accuracy in grading mitral regurgitation severity compared to semi-quantitative jet area analysis.
    • PISA method is a valuable tool for accurate mitral regurgitation assessment in clinical practice.