Clinical Article
Color M-mode Regurgitant Flow Propagation Velocity: A New Echocardiographic Method for Mitral Regurgitation Assessment :3D Color Doppler Correlation
Rania Gaber MD, Mai Salama MD, Somaia Abd El samea Departments of cardiology & paediatric, Tanta& Banha Universities, Egypt
Background: Doppler echocardiography has high sensitivity in detecting mitral regurgitation and Doppler color flow mapping is the most widespread method in clinical practice to assess the severity of MR.
AIM The present study aimed to evaluate the reliability of mitral regurgitation color M- mode regurgitation flow propagation velocity MRFPV in assessment of mitral regurgitation.
Methods The present study enrolled 35 patients having variable degrees of Mitral regurgitation (mild–moderate- severe), 20 of them rheumatic MR and 10 congenital MR, 5 mitral valve prolapse. All patients were subjected to: 2D echocardiography to establish the diagnosis & to exclude patients who are not fitting the criteria, pulsed Doppler assessment of mitral regurgitation degree (mild, moderate, severe), 3 D color Doppler assessment of mitral regurgitation and mitral regurgitation color M-mode flow propagation velocity.
Results :There was a high correlation between the grade of mitral regurgitation by 3D color Doppler analyses and the flow propagation velocity as measured by color M-mode Doppler recording r= 0.96, p <0.001. The mean values of RFPV does not change significantly in patients both with normal and low left ventricular ejection fraction after grouping of mild, moderate and severe MR concerned (p> 0.05).
Conclusions: Mitral regurgitation flow propagation velocity is a simple and reliable method for grading of mitral regurgitation.
Keywords: Mitral regurgitation flow propagation velocity, Mitral regurgitation, Three dimensional echocardiography.