Measurments of Mitral Valve Area with Color Doppler Flow in Mitral Stenosis

Doppler calor jlow assesments were perfoı-med in 20 patients with mitral stenosis undergohıg ear diac catheteri:ation in Koşuyolu Heart and Re-search Hospital between December 1991-August 1992. In the clinical doppler study, mitral valve ori-fice was assumed to be eliptir and mitral valve area was caloılated from equation ırI3 (arb). Shoı-t di-ameter (a) = Color jet widhı at the mitral valve ori-fice in the apiral Tong-aris view, tong dianıeter (b) = the width in the 90° clodovise rotated view. Mitral valve area was also determined by two-dimentional echocardiography and pressure half-time method, and the resulıs for these methods were compared with those obtained at cardiac catheterization. By Doppler color flow imaging, mitral va/ve arca could be determined in an patients and there was a significant correlation between the doppler jet and ratheterkation estinzates of mitral valve area (r=0.92). Valve area determined by two-dimentional echocardiography was correlated weil with fal-heterization measurment (r=0.81). In addition there was a fair correlation between the valve area determined by the pressure ludf-ıinıe method and ratheterization (r=0.70). These findings suggest that Doppler color jlow imaging can provide an acuurate estimate of mitral valve area.