Reference
Parameters of Aortic Stenosis on Echocardiography
Mitral stenosis *Specific findings Echocardiographic assessment of valve stenosis: EAE/ASE recommendations for clinical practice (2009)
Every tool, one focused workspace.
1,329 calculators and references across 60 specialties, with formula confidence shown up front.
11results
Clear all filtersReference
Parameters of Aortic Stenosis on Echocardiography
Aortic Stenosis Recommendations on the Echocardiographic Assessment of Aortic Valve Stenosis: A Focused Update from the EACVI and the ASE (2017)
Reference
Parameters of Mitral Regurgitation on Echocardiography
Mitral regurgitation Bolded qualitative and semiquantitative signs are considered specific for their MR grade. All parameters have limitations, and an integrated approach must be used that weighs the strength of each echocardiographic measurement. All signs and measures should be interpreted in an individualized manner that accounts for body size, sex, and all other patient characteristics. (1) This pertains mostly t
Reference
Parameters of Pulmonary Stenosis on Echocardiography
Pulmonary Stenosis Echocardiographic assessment of valve stenosis: EAE/ASE recommendations for clinical practice (2009)
Reference
Parameters of Tricuspid Stenosis on Echocardiography
Tricuspid Stenosis *Specific findings Echocardiographic assessment of valve stenosis: EAE/ASE recommendations for clinical practice (2009)
Interactive worksheet
PDA Hemodynamic Significance Index (PDAsc) Calculator
PDA Severity Score (PDAsc) — Explanation and Clinical Context The PDA Severity Score (PDAsc) is a multivariable echocardiography-based prognostic index developed to quantify early hemodynamic significance of a patent ductus arteriosus in very preterm infants and predict the composite outcome of chronic lung disease or death before discharge. The score combines gestational age, echocardiographic PDA diameter (pulmonar
Interactive worksheet
Peak TRV Risk Stratification Calculator (Echocardiography Pulmonary Hypertension Assessment)
Peak TRV Risk Stratification: Explanation and Clinical Context Peak tricuspid regurgitant velocity (TRV) is a key echocardiographic parameter used to estimate pulmonary artery systolic pressure (PASP) and assess the probability of pulmonary hypertension (PH). It is derived from continuous-wave Doppler measurement of the tricuspid regurgitation jet and incorporated into the simplified Bernoulli equation (ΔP = 4 × TRV²
Interactive worksheet
Pericardial Effusion Tamponade Index (PETI) Calculator
Pericardial Effusion Tamponade Index (PETI): Explanation and Clinical Context The Pericardial Effusion Tamponade Index (PETI) is a quantitative echocardiographic score designed to assess the hemodynamic significance of pericardial effusion and predict the risk of cardiac tamponade. It combines the durations of right atrial and right ventricular collapse observed during echocardiography with the maximum width of the p
Interactive worksheet
PROSPECT Echo Score (CRT Responder) Calculator
PROSPECT Echo Score: Explanation and Clinical Context The PROSPECT Echo Score is designed to predict the likelihood of a positive response to cardiac resynchronization therapy (CRT) based on echocardiographic and electrocardiographic parameters. Key variables include LVESV reduction percentage, QRS duration, mitral regurgitation severity, and left ventricular dyssynchrony index. Each parameter that meets a threshold
Interactive worksheet
Pulmonary Valve Annulus (PVA) Z-score Calculator
Pulmonary Valve Annulus (PVA) Z-score — explanation and clinical context This calculator implements the regression equations published by Pettersen et al. (J Am Soc Echocardiogr 2008) to compute a z-score for the pulmonary valve annulus relative to body size. Pettersen and colleagues derived nonlinear polynomial regression models on the natural-log transformed echocardiographic measurements against body surface area
Interactive worksheet
Pulmonary Vascular Resistance (PVR) Estimate Calculator
Pulmonary Vascular Resistance (PVR) Estimate Using TRV/VTIRVOT: Explanation and Clinical Context Pulmonary vascular resistance (PVR) is a critical parameter in assessing pulmonary hypertension. The TRV/VTIRVOT method provides a non-invasive echocardiographic estimate of PVR, based on the relationship between the peak tricuspid regurgitation velocity (TRV) and the right ventricular outflow tract time-velocity integral