Assessing Mitral Regurgitation with Cardiovascular Magnetic Resonance
Author Information
Author(s): Chan KM John, Wage Ricardo, Symmonds Karen, Rahman-Haley Shelley, Mohiaddin Raad H, Firmin David N, Pepper John R, Pennell Dudley J, Kilner Philip J
Primary Institution: Cardiovascular Magnetic Resonance Unit, Royal Brompton and Harefield NHS Trust
Hypothesis
Can cardiovascular magnetic resonance (CMR) provide a comprehensive assessment of mitral regurgitation severity and associated valve dysfunction?
Conclusion
CMR is a feasible method for comprehensive assessment of mitral regurgitation, allowing for evaluation of severity, valve dysfunction, and left ventricular function in a single examination.
Supporting Evidence
- CMR allows for accurate determination of left and right ventricular volumes and function.
- The study found that CMR can effectively quantify mitral regurgitation severity.
- A systematic imaging technique was used to assess mitral regurgitation in 149 patients over 15 months.
- The study highlights the importance of identifying leaflet prolapse or restriction for surgical planning.
- CMR can complement echocardiography in cases where transthoracic echocardiography is inadequate.
Takeaway
Doctors can use a special type of heart scan called CMR to see how well the heart's mitral valve is working and if it needs fixing.
Methodology
The study involved systematic imaging of the mitral valve using CMR in 149 patients, assessing ventricular function, mitral regurgitant volume, and valve dysfunction.
Limitations
The study may not fully account for the operator dependency of CMR and the challenges in visualizing certain anatomical structures.
Participant Demographics
Patients had varying etiologies and severity of mitral regurgitation, with 42% due to ischemia or infarction, 41% degenerative, 9% rheumatic, and 8% cardiomyopathy.
Digital Object Identifier (DOI)
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