Intraoperative Quantitative Mitral Valve Analysis Using Optical Tracking Technology

Area of Science:

• Cardiovascular Surgery
• Medical Imaging
• Surgical Technology

Background:

• Mitral valve reconstruction analysis relies on subjective visual assessment.
• Current methods lack reproducibility and quantitative precision.
• A need exists for objective intraoperative mitral valve assessment tools.

Purpose of the Study:

• To demonstrate the feasibility of a novel intraoperative system for quantitative mitral valve analysis.
• To introduce a computer-based assistance system for precise mitral valve measurements.
• To enhance surgical decision-making during mitral valve repair.

Main Methods:

• Utilized optical tracking technology for accurate intraoperative localization of mitral valve landmarks.
• Developed tailored measurement and visualization strategies for mitral valve operations.
• Applied a computer-based assistance system for real-time quantitative analysis.

Main Results:

• Successfully demonstrated feasibility in 9 patients, providing precise geometric descriptions.
• Quantitative measurements showed good agreement with implanted prosthetic ring sizes.
• Significant differences observed between beating heart and cardioplegic conditions in annular dimensions.

Conclusions:

• Intraoperative mitral valve analysis using optical tracking is a technological advancement.
• Provides surgeons with enhanced quantitative perception of the surgical target.
• Facilitates a shift from empirical to predictable, quantitative mitral valve reconstruction.