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Localization and quantification of mitral valve prolapse using three-dimensional echocardiography
A Delabays1, X Jeanrenaud, P-G Chassot
1Division of Cardiology, the Department of Cardiothoracic Surgery and the Department of Anesthesiology, University Hospital Lausanne, BH 16, 1011 Lausanne-CHUV, Switzerland. alain.delabays@chuv.hospvd.ch
Summary
Three-dimensional echocardiography precisely locates and quantifies mitral valve prolapse, improving surgical planning for mitral regurgitation. This advanced imaging technique enhances patient selection for mitral valve repair procedures.
Area of Science:
- Cardiology
- Medical Imaging
- Echocardiography
Background:
- Mitral valve prolapse is a frequent cause of severe mitral regurgitation in Western populations.
- Accurate assessment of prolapse is crucial for effective surgical intervention.
Purpose of the Study:
- To evaluate the precision of three-dimensional echocardiography (3D echo) in localizing and quantifying mitral valve prolapse.
- To assess the utility of 3D echo in surgical planning for mitral valve repair.
Main Methods:
- Ninety-one patients with severe mitral regurgitation due to mitral valve prolapse underwent transesophageal echocardiography with 3D reconstruction.
- Echographic findings of prolapse location and extent were compared with surgical findings.
- The volume of prolapsing leaflet was compared to resected tissue volume during repair.
Main Results:
- Excellent correlation was observed between echographic localization and surgical inspection of the prolapse (r=0.94, p<0.0001).
- A strong agreement was found between the calculated volume of prolapsing leaflet and the volume of resected tissue.
- 3D echo provided precise localization and accurate quantification of the prolapsing leaflet portions.
Conclusions:
- Three-dimensional echocardiography offers precise localization and quantification of mitral valve prolapse in patients with severe mitral regurgitation.
- This technique can significantly refine surgical planning and improve candidate selection for mitral valve repair.