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 2016 ASE/EACVI diastolic function guidelines, 2015 ASE/EACVI cardiac chamber quantification guidelines, and 2014/2017 ACC/AHA guidelines for valvular heart disease. The included companion app for the Apple Watch provides a reference while performing or interpreting echocardiograms. Go to for a full tour of EchoLab in action.

EchoLab presents the formulas and algorithms used daily in the adult echocardiography laboratory. Designed by a practicing cardiologist and echocardiographer, EchoLab provides a comprehensive framework for teaching the principles of quantitative echocardiography, or cardiac ultrasound. 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). Quick Entry views provide immediate access to a wide array of echocardiographic calculations to fuel the Analytic Engine.

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 and analyses include:

• Aortic effective regurgitant orifice area
• Aortic energy loss index
• Aortic flow acceleration time with ratio to left ventricular ejection time
• Aortic prosthetic paravalvular regurgitant extent
• Aortic regurgitant fraction
• Aortic regurgitant jet width, jet area, pressure half-time, and 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 with projected aortic valve area)
• Aortic valve resistance
• Body mass index
• Body surface area
• Cardiac output and ejection fraction (3D, area-length, Doppler, Dumesnil, Teichholz, simplified Quinones, and Simpson's methods)
• Diastolic assessment (using either 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 fractional shortening
• Left ventricular GLS
• 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)
• Maximum rate-pressure product (for exercise stress)
• 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)
• Prosthetic aortic and mitral valve assessment
• 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, size, 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 7.1.2

• Bug fix update to restore consistent responsiveness of the Clear button at the bottom each calculation view. Correction involved changing the order of the Analyze, Clear, and Favorite buttons in the calculation toolbar.

Version 7.1:
• Analytic Engine enhanced to provide assessment of:
-Hypertrophic cardiomyopathy.
-Pulmonary embolism with the “60/60” sign (pulmonary artery acceleration time ≤ 60 msec, and tricuspid regurgitant gradient > 30 mmHg and ≤ 60 mmHg).

• Streamlined diastolic evaluation by the Analytic Engine using ASE/EACVI 2016 guidelines, with a correction to use pulmonary venous systolic/diastolic flow ratio only with a depressed left ventricular ejection fraction.

• Aortic valve area by planimetry added to Aortic Valve category, and mitral valve area by planimetry added to Mitral Valve category, for enhanced evaluation of valve stenosis by the Analytic Engine.

EchoLab is optimized for iOS 13 with Dark Mode, ideal for use in the dimmed lighting of a typical echocardiography reading room.

Ratings and Reviews

5.0 out of 5
2 Ratings

2 Ratings

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
46.9 MB

Requires iOS 13.0 and watchOS 4.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Unrestricted Web Access
Infrequent/Mild Medical/Treatment Information


  • Family Sharing

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

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