Unique to EchoLab among echocardiography applications is the powerful Analytic Engine, which synthesizes results from multiple calculations into a cohesive overview with a comprehensive summary, with integration of 2015 ASE/EACVI cardiac chamber quantification guidelines and 2014 ACC/AHA guidelines for valvular heart disease. Also included is a companion app for the Apple Watch for reference while performing or interpreting echocardiograms. Go to for a full tour of EchoLab in action.

EchoLab presents the formulas and algorithms commonly used in the day-to-day operation of an echocardiography laboratory. Designed by a practicing cardiologist and echocardiographer, EchoLab provides a comprehensive framework for teaching the principles of quantitative echocardiography, or cardiac ultrasound, by demonstrating the inter-relationships between these formulas. EchoLab is unique as an application for echocardiography in its wide scope and with its sharing of entered and calculated data between its many formulas (users do not need to re-enter data when shifting to a new calculation). Six Quick Entry views provide immediate access to a wide array of echocardiographic calculations.

EchoLab displays all data with an assessment of each variable as normal or abnormal by adult criteria. Available with each formula is a graphical display of the corresponding mathematical equation, along with tips for using the calculation and medical literature references.

Calculations include:

• Aortic effective regurgitant orifice area
• Aortic energy loss index
• Aortic flow acceleration time with ratio to left ventricular ejection time (native and prosthetic valves)
• Aortic regurgitant fraction
• Aortic regurgitant vena contracta
• Aortic regurgitation index (for TAVR, from invasive pressure measurements)
• Aortic root assessment
• Aortic valve area (from velocity and velocity-time integrals, including dobutamine stress echocardiography with projected aortic valve area)
• Aortic valve resistance
• Body mass index
• Body surface area
• Cardiac output and ejection fraction (area-length, Doppler, Dumesnil, Teichholz, and Simpson's methods)
• Diastology assessment algorithm (with option to use 2009 or 2016 guidelines for analysis)
• Hemodynamic summary
• Left atrial pressure
• Left and right atrial volume and index
• Left ventricular diastolic diameter index
• Left ventricular dP/dt
• Left ventricular ejection fraction (simplified Quinones method)
• Left ventricular fractional shortening
• Left ventricular mass, mass index, and relative wall thickness
• Left ventricular myocardial performance index
• Left ventricular stroke work loss
• Maximum predicted heart rate (for dobutamine and exercise stress echocardiography)
• Maximum rate-pressure product (for exercise stress echocardiography)
• Mean arterial pressure
• Mitral effective orifice area (PISA and stroke volume methods)
• Mitral regurgitant fraction (PISA and stroke volume methods)
• Mitral regurgitant vena contracta
• Mitral valve area (continuity, PISA, and pressure half-time methods)
• Mitral valve resistance
• Mitral valvuloplasty score
• Pericardial effusion (size and flow velocity paradoxus)
• Pulmonary artery systolic pressure (using tricuspid regurgitant velocity, VSD flow velocity, or pulmonary artery acceleration time), diastolic pressure, and mean pressure
• Pulmonary capillary wedge pressure
• Pulmonary vascular resistance
• Right atrial pressure
• Right ventricular function: dP/dt, fractional area change, index of myocardial performance, lateral annular plane systolic excursion, and tricuspid annular plane systolic excursion (TAPSE)
• Shunt ratio (Qp:Qs)
• Systemic vascular resistance
• Tricuspid regurgitant vena contracta
• Tricuspid valve area (pressure half-time method)

EchoLab is a teaching and reference application, not a tool for clinical diagnosis, clinical decision-making, or echocardiography report generation.

What’s New

Version 6.2

• Diastolic evaluation updated with the 2016 guidelines from the American Society of Echocardiography and the European Association of Cardiovascular Imaging.
- Access the 2016 guidelines with the new Quick Entry (diastology, 2016) analysis item.
- Access the 2009 diastology guidelines with the Diastolic Evaluation (2009) and the Quick Entry (diastology, 2009) analysis items.

By default the Analytic Engine uses the 2016 diastology guidelines, but you can choose a default in the EchoLab app Settings.

• Diastolic evaluation reference added to the companion EchoLab app for the Apple Watch.

• Color “complication” added to support the Apple Watch Series 4.

Ratings and Reviews

echo-steve ,

great app

A specialized "echo calculator". Now I don't have to go hunting around for forumulae.
Useful for practicing cardiologist, fellow, and sonographer.


Medical Appware, LLC
31.3 MB
Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
You must be at least 17 years old to download this app.
Infrequent/Mild Medical/Treatment Information
Unrestricted Web Access
© 2018 Medical Appware, LLC


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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