About EchoLab
EchoLab presents the formulas and algorithms used daily in an adult echocardiography laboratory. Designed by a practicing cardiologist and echocardiographer, EchoLab provides a comprehensive framework for teaching the...
EchoLab presents the formulas and algorithms used daily in an 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's unique design permits sharing of entered and calculated data between its many formulas, with no 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.
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 ASE/EACVI guidelines. The included companion app for the Apple Watch provides a ready reference when performing or interpreting echocardiograms.
Available with each calculation is a graphical display of the corresponding mathematical equation, along with tips for using the calculation and medical literature references with integrated hyperlinks.
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 transvalvular flow rate
• Aortic valve area (from velocity and velocity-time integrals, including dobutamine stress with projected aortic valve area)
• Aortic valve resistance
• Aortic valvulo-arterial impedance (Zva)
• 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)
• Diastolic stress echocardiography
• echocardiographic Pulmonary to Left Atrial Ratio (ePLAR)
• Exercise stress echocardiography
• Hemodynamic summary
• Left atrial pressure
• Left atrial expansion index, function index, and reservoir strain
• 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-arterial coupling
• Right ventricular function: dP/dt, fractional area change, free wall strain, 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.
Apr 4, 2023
Version 10.0
An extensive update with a focus on left atrial function:
• New calculations and analyses for left atrial emptying fraction, left atrial expansion index, left atrial function index, and left atrial reservoir strain.
• New calculation of pulmonary capillary wedge pressure (PCWP) from the left atrial expansion index.
• Left Atrial Volume and Function view modified for entry of maximum and minimum left atrial volumes.
• Analytic Engine updated to assess risk of developing atrial fibrillation, based on echocardiographic parameters.
Additional new features:
• New Demographics and Clinical Conditions view added to allow rapid baseline data entry and designation of conditions affecting data analysis (such as presence of a valve prosthesis). Consider making this view one of your favorites for easy access, since once the patient’s sex is designated here, it no longer is necessary to specify the sex when utilizing the Analytic Engine.
• Right ventricular free wall strain added to right ventricular assessment.
• Strain Imaging added as a new view category for data entry.
• Multiple refinements of the Analytic Engine, including enhanced assessment of hypertrophic cardiomyopathy.
• List of echocardiography and cardiology organizations expanded to over 70 direct links, found under “Organizations” using the “?” button at the top right of the initial app screen.
EchoLab is optimized for Dark Mode, ideal for use in the dimmed lighting of a typical echocardiography reading room.
Remember that designating Quick Entry views as favorites permits easy access to the most frequently used echocardiographic measurements under the Favorites tab.
Remember also to check out the bundled Apple Watch app for EchoLab, providing a ready reference when performing echocardiograms.
Previous Versions
Here you can find the changelog of EchoLab since it was posted on our website on 2021-10-07 16:45:14.
The latest version is 10.0 and it was updated on 2024-04-19 16:57:29. See below the changes in each version.
EchoLab version 10.0
Updated At: 2023-04-04
Changes: Apr 4, 2023
Version 10.0
An extensive update with a focus on left atrial function:
• New calculations and analyses for left atrial emptying fraction, left atrial expansion index, left atrial function index, and left atrial reservoir strain.
• New calculation of pulmonary capillary wedge pressure (PCWP) from the left atrial expansion index.
• Left Atrial Volume and Function view modified for entry of maximum and minimum left atrial volumes.
• Analytic Engine updated to assess risk of developing atrial fibrillation, based on echocardiographic parameters.
Additional new features:
• New Demographics and Clinical Conditions view added to allow rapid baseline data entry and designation of conditions affecting data analysis (such as presence of a valve prosthesis). Consider making this view one of your favorites for easy access, since once the patient’s sex is designated here, it no longer is necessary to specify the sex when utilizing the Analytic Engine.
• Right ventricular free wall strain added to right ventricular assessment.
• Strain Imaging added as a new view category for data entry.
• Multiple refinements of the Analytic Engine, including enhanced assessment of hypertrophic cardiomyopathy.
• List of echocardiography and cardiology organizations expanded to over 70 direct links, found under “Organizations” using the “?” button at the top right of the initial app screen.
EchoLab is optimized for Dark Mode, ideal for use in the dimmed lighting of a typical echocardiography reading room.
Remember that designating Quick Entry views as favorites permits easy access to the most frequently used echocardiographic measurements under the Favorites tab.
Remember also to check out the bundled Apple Watch app for EchoLab, providing a ready reference when performing echocardiograms.
EchoLab version 9.0.1
Updated At: 2022-05-22
Changes: May 22, 2022 Version 9.0.1
• Minor update to expand display for height and weight to 2 decimal places, along with expanded decimal used internally for conversion of pounds to kilograms.
New to EchoLab version 9.0:
• All literature references, provided for each calculation, now include hyperlinks for direct internet access.
• Literature references updated to include the latest societal guidelines.
• New Aortic Valvulo-Arterial Impedance view added to the Aortic Valve section as an additional parameter for assessing aortic stenosis.
• New Right Ventricular-Arterial Coupling view added to the Right Ventricle section as an additional parameter for assessing right ventricular contractile reserve in the presence of pulmonary hypertension.
• Links to cardiology and echocardiography organizations updated in the Guides and Resources section.
EchoLab is optimized for iOS 15 with Dark Mode, ideal for use in the dimmed lighting of a typical echocardiography reading room.
Remember that designating Quick Entry views as favorites permits easy access to the most frequently used echocardiographic measurements under the Favorites tab.
Remember also to check out the bundled Apple Watch app for EchoLab, providing a ready reference when performing echocardiograms.
EchoLab version 9.0
Updated At: 2022-05-01
Changes: May 1, 2022 Version 9.0
• All literature references in the app, provided for each calculation, now include hyperlinks for direct internet access.
• Literature references updated to include the latest societal guidelines.
• New Aortic Valvulo-Arterial Impedance view added to the Aortic Valve section as an additional parameter for assessing aortic stenosis.
• New Right Ventricular-Arterial Coupling view added to the Right Ventricle section as an additional parameter for assessing right ventricular contractile reserve in the presence of pulmonary hypertension.
• Links to cardiology and echocardiography organizations updated in the Guides and Resources section.
EchoLab is optimized for iOS 15 with Dark Mode, ideal for use in the dimmed lighting of a typical echocardiography reading room.
Remember that designating Quick Entry views as favorites permits easy access to the most frequently used echocardiographic measurements under the Favorites tab.
Remember also to check out the bundled Apple Watch app for EchoLab, providing a ready reference when performing echocardiograms.
EchoLab version 8.1
Updated At: 2021-08-06
Changes: Aug 6, 2021 Version 8.1
• New Constrictive Pericarditis versus Restrictive Cardiomyopathy view integrates this portion of the 2016 ASE/EACVI diastology guidelines into the Analytic Engine. An Ancillary Findings button appears for entry of additional data if restrictive physiology is possible.
• Deprecated 2009 ASE diastology assessment removed as an option from the Analytic Engine, which now exclusively uses the 2016 ASE/EACVI diastology guidelines in the Quick Entry (diastology) view.
• Quick Entry (diastology) view now includes:
• Entry of mitral inflow L-wave velocity, which, if abnormal, suggests a pseudonormal diastolic filling pattern.
• Toggle switch to signify the presence of left bundle branch block or ventricular pacing, which, if present, may affect the diastolic assessment.
• Button for direct access to the new Constrictive Pericarditis versus Restrictive Cardiomyopathy view.
EchoLab is optimized for iOS 14 with Dark Mode, ideal for use in the dimmed lighting of a typical echocardiography reading room.
Remember that designating Quick Entry views as favorites permits easy access to the most frequently used echocardiographic measurements under the Favorites tab.
Remember also to check out the bundled Apple Watch app for EchoLab, providing a ready reference when performing echocardiograms.
