EchocardiographyExercise StressMiscEchocardiography
Aortic Valve Velocity RatioLV EF (Modified Quinones Equation)Myocardial Performance Index (RV)
AVA (Continuity Equation VTI)LV EF (Simplified Quinones Equation)PCWP by E/Ea (Nagueh Formula)
AVA (Continuity Equation VMax)LV Fractional ShorteningPISA (Mitral regurgitation)
dP/dt (LV contractility)LV Mass and LV Mass IndexPISA (Mitral stenosis)
dP/dt (RV contractility)Mitral valve area (PHT)Qp/Qs
Left atrial pressure (MR)Mitral Valvuloplasty Score (MGH)RVSP (TR)
LA Volume (Biplane Method)Modified Bernoulli EquationStroke Volume, Cardiac Output
LV EF (Dumesnil Method)Myocardial Performance Index (LV)
Next

LAP Estimation by Mitral Regurgitation Jet

Calculation


MR VMax m/s
SBP mmHg


LAP mmHg
Calculate

Clear
Top

Information

Left atrial pressure (LAP) can be estimated by measuring the systolic blood pressure and the maximum mitral regurgitation velocity by spectral Doppler provided that there is no significant gradient across the aortic valve.

LAP = SBP - 4 (MR VMax)2

Variable Definition
MR VMax Maximum mitral regurgitation velocity (m/sec)
SBP Systolic Blood Pressure (mmHg)
LAP Left Atrial Pressure (mmHg)

References


Fatal error: Uncaught Error: Call to undefined function ereg_replace() in /u/c/cardio/www.csecho.ca/wp-content/themes/twentyeleven-csecho/cardiomath/index.php:472 Stack trace: #0 {main} thrown in /u/c/cardio/www.csecho.ca/wp-content/themes/twentyeleven-csecho/cardiomath/index.php on line 472