Calculating stroke volume from the mitral echogram.
نویسندگان
چکیده
منابع مشابه
Stroke Volume Calculated from the Mitral Valve Echogram
Grantham RN, Scully HE, Beierholm EA, Frederiksen JW, Weisfeldt ML, Dagget WM: The echocardiogram of the anterior leaflet of the mitral valve. Correlation with hemodynamic and cineroentgenographic studies in dogs. Circulation 51: 88, 1975 16. Rubenstein JJ, Pohost GM, Dinsmore RE, Harthorne JW: The echocardiographic determination of mitral valve opening and closure. Correlation with hemodynamic...
متن کاملStroke volume calculated from the mitral valve echogram in patients with and without ventricular dyssynergy.
A formula was derived for calculating mitral valve stroke volume (MVSV) using the rate of mitral valve (MV) opening (DE slope on the MV echogram), the vertical disease between the mitral leaflet echoes early in diastole (EE), the electrocardiographic PR interval and heart rate. The formula was tested prospectively on 80 consecutive patients from whom 95 simultaneous MV echograms and either ther...
متن کاملA study of the dynamic relations between the mitral valve echogram and phasic mitral flow.
Echocardiographically recorded mitral valve motion was compared with phasic transmitral flow in 17 open chest dogs. The normal mitral valve opening started with the onset of mitral flow and reached its full excursion while flow was still accelerating. Complete valve opening occurred .044 sec (plus or minus .002 sem) before peak flow, during which time an average of 17.6 percent of total mitral ...
متن کاملNoninvasive Assessment of Left Ventricular Function from the Mitral Valve Echogram
Since final mitral valve (MV) closure and aortic ejection velocity are mediated by the same forces in early left ventricular (LV) contraction, the rate of final MV closure (BC slope) should reflect LV performance. We first verified whether peak final closing velocity (ds/dt) of the anterior MV leaflet (AMVL) is related to peak aortic ejection velocity (V) and LV dp/dt in 18 open-chest dogs. We ...
متن کاملImpact of stroke volume on mitral annular velocities derived from tissue Doppler imaging.
M itral annular velocities derived from pulsed tissue Doppler imaging (TDI) were recently demonstrated to complement the analysis of systolic and diastolic left ventricular (LV) performance in different clinical settings. 2 The early diastolic mitral annular velocity (E9) was found to behave as a preload independent index of relaxation. The mitral E/E9 ratio (that is, the mitral E velocity corr...
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ژورنال
عنوان ژورنال: Circulation
سال: 1978
ISSN: 0009-7322,1524-4539
DOI: 10.1161/circ.58.5.699266