# EchoLab — Analysis for echocardiography > Echocardiography analysis formulas and algorithms for cardiac ultrasound. (iPhone/iPad app by Medical Appware, LLC.) - Source: https://appshunter.io/ios/app/echolab/id427460805 (this page in markdown: same URL + `.md`) - Developer: [Medical Appware, LLC](https://appshunter.io/developer/427460808) - Category: Medical, Reference - Price: $4.99 - Age rating: 17+ - Requires: iOS 18.0 · 46 MB - Languages: American English - Released: 2011-04-12 - Data updated: 2026-09-07 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/echolab/id427460805/reviews.md ## What is EchoLab? EchoLab presents the formulas and algorithms used in an adult echocardiography laboratory. Designed by a practicing cardiologist, 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. Quick Entry views provide immediate access to a wide array of echocardiographic calculations. 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) • Biventricular coupling index • Body mass index • Body surface area • Cardiac output and ejection fraction (3D, area-length, Doppler, Dumesnil, Teichholz, simplified Quinones, and Simpson's methods) • Diastolic evaluation (using 2025 ASE guidelines for analysis) • Diastolic stress echocardiography • echocardiographic Pulmonary to Left Atrial Ratio (ePLAR) • Exercise stress echocardiography • Hemodynamic summary • Left atrial appendage emptying velocity • 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 • Left ventricular wall motion score index • 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. ## Key features - Quantitative echocardiography calculations - Integration of ASE/EACVI guidelines - Analytic Engine for synthesized results - Companion Apple Watch app - Graphical display of equations - Medical literature references with hyperlinks - Wide array of echocardiographic calculations ## Chart rankings - #101 in Top Paid · Medical (US App Store) ## Recent user reviews (4 of 4) All indexed reviews: https://appshunter.io/ios/app/echolab/id427460805/reviews.md ### 5/5 — Excelente ! *2022-04-01* Todas as fórmulas para Ecocardiografia em um único lugar👍 ### 5/5 — Exemplar!!! *2014-02-05* Tudo o que preciso para otimizar quantificações hemodinâmicas com base nos mais atuais quidelines... Parabéns! ### 5/5 — great app *2011-10-16* A specialized "echo calculator". Now I don't have to go hunting around for forumulae. Useful for practicing cardiologist, fellow, and sonographer. ### 1/5 — Echolab *2011-08-10* One of the worse downloads ever. Totally useless. Don't bother & consider alternative ## Frequently asked questions about EchoLab ### What is EchoLab used for? EchoLab presents formulas and algorithms for adult echocardiography analysis. It's designed for teaching quantitative echocardiography and cardiac ultrasound principles, offering a comprehensive framework for calculations and data synthesis. ### Does EchoLab have ads? No, EchoLab does not contain advertisements. It is a paid application designed to provide a focused and uninterrupted user experience for medical analysis. ### What devices does EchoLab support? EchoLab is available for iPhone and Apple Watch. The companion Apple Watch app provides a convenient reference when performing or interpreting echocardiograms. ### How often is EchoLab updated? The latest version of EchoLab is 13.1, last updated on February 19, 2026. This indicates a commitment to regular updates and maintenance for the application. ### What is the price of EchoLab? EchoLab is available for a one-time purchase of $4.99. There are no in-app purchases or subscription fees associated with this application. ### What age rating does EchoLab have? EchoLab has an age rating of 17+. This is likely due to the complex medical information and analysis presented within the application. ### What kind of calculations does EchoLab offer? EchoLab offers a vast array of calculations including those for aortic and mitral valve function, cardiac output, ejection fraction, diastolic evaluation, and various indices for left and right atrial and ventricular function. ### Does EchoLab integrate with other health apps? The provided data does not specify integration with other health apps. EchoLab focuses on its own comprehensive suite of echocardiography analysis tools and its companion Apple Watch app. ## Version history (last 5 releases) ### 13.1 — 2026-02-19 EchoLab v13.1: • Minor revision of the Analytic Engine for improved evaluation of left ventricular diastolic function using the 2025 guidelines from the American Society of Echocardiography (ASE). • Aortic valve area from planimetry added to Quick Entry (aortic stenosis) view. • Mitral valve area from planimetry added to Quick Entry (mitral stenosis) view. EchoLab v13.0: A significant update with a focus on left ventricular diastolic evaluation: • Analytic engine and Quick Entry (diastology) view extensively revised for evaluation of left ventricular diastolic function using the 2025 guidelines from the American Society of Echocardiography (ASE), with separate analyses for “special populations” (atrial fibrillation, heart transplant, left ventricular assist device (LVAD), mitral annular calcification (MAC), and noncardiac pulmonary hypertension). • Diastolic evaluation of hypertrophic cardiomyopathy revised to use the 2022 multimodality imaging guidelines from the ASE, American Society of Nuclear Cardiology, Society for Cardiovascular Magnetic Resonance, and Society of Cardiovascular Computed Tomography. • Diastolic stress echocardiography updated to use the 2025 ASE diastolic evaluation guidelines. • Normal values adjusted for left atrial reservoir strain, left ventricular global longitudinal strain, and right ventricular free wall strain to conform to the 2025 guidelines from the ASE and the European Association of Cardiovascular Imaging. • Demographics and Clinical Conditions view updated to include special populations for diastolic evaluation. 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. ### 13.0 — 2026-01-27 A significant update with a focus on left ventricular diastolic evaluation: • Analytic engine and Quick Entry (diastology) view extensively revised for evaluation of left ventricular diastolic function using the 2025 guidelines from the American Society of Echocardiography (ASE), with separate analyses for “special populations” (atrial fibrillation, heart transplant, left ventricular assist device (LVAD), mitral annular calcification (MAC), and noncardiac pulmonary hypertension). • Diastolic evaluation of hypertrophic cardiomyopathy revised to use the 2022 multimodality imaging guidelines from the ASE, American Society of Nuclear Cardiology, Society for Cardiovascular Magnetic Resonance, and Society of Cardiovascular Computed Tomography. • Diastolic Stress Echocardiography view updated to use the 2025 ASE diastolic evaluation guidelines. • Normal values adjusted for left atrial reservoir strain, left ventricular global longitudinal strain, and right ventricular free wall strain to conform to the 2025 guidelines from the ASE and the European Association of Cardiovascular Imaging. • Demographics and Clinical Conditions view updated to include special populations for diastolic evaluation. 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. ### 12.0 — 2025-05-21 A significant update with a focus on the right heart and pulmonary hypertension: • Analytic engine extensively revised for evaluation of pulmonary hypertension using the 2022 guidelines from the European Society of Cardiology and the European Respiratory Society (ESC/ERS). With this revision, EchoLab now uses the tricuspid regurgitant velocity as the primary variable for initial assessment of pulmonary hypertension instead of the calculated mean pulmonary artery pressure. • New Pulmonary Artery Systolic Pressure (TR velocity) view incorporates 2022 ESC/ERS guideline parameters to predict the probability of pulmonary hypertension as low, intermediate, or high. • Calculations of pulmonary artery systolic pressure from the tricuspid regurgitant velocity and from the gradient across a ventricular septal defect now are separated into two different views in the Pulmonary Artery category. • Quick Entry (pulmonary hypertension) view updated for a comprehensive evaluation of pulmonary hypertension with focused data entry. • New Left Ventricular Eccentricity Index view added for quantitative assessment of septal flattening in the presence of right ventricular pressure and/or volume overload. • Normal cutoff values for right atrial volume index, TAPSE, right ventricular base and mid-cavity width, right ventricular fractional area change, right ventricular free wall thickness, right ventricular free wall strain, and right ventricular index of myocardial performance adjusted to conform to the 2025 right heart guidelines from the American Society of Echocardiography (ASE). • Pulmonary vascular resistance calculation modified to follow the 2025 ASE right heart guidelines. • Main pulmonary artery width added as an enterable measurement in the Pulmonary Artery category and in the new Vessels category. • Aortic Root evaluation moved to the new Vessels category. • Right Atrial Volume view revised for right atrial volume index calculation using the area-length method, disc summation method, or direct 3D measurement. 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. ### 11.1 — 2024-08-15 • New calculation added for estimation of the pulmonary capillary wedge pressure (PCWP) from the left atrial volume index, the mitral inflow E-wave velocity, and the pulmonary venous systolic velocity. • Hemodynamics view updated to include PCWP estimated with 3 different methods. • Enhanced evaluation of shock states in the Analytic Engine (cardiogenic, distributive, and hypovolemic shock), using the cardiac index, PCWP, and systemic vascular resistance. • Continued refinement of the Analytic Engine. 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 frequently used echocardiographic measurements under the Favorites tab. Consider making the Demographics and Clinical Conditions view into a favorite to ensure that the Analytic Engine accounts for relevant clinical factors. Check out the bundled Apple Watch app for EchoLab, providing a ready reference when performing echocardiograms. ### 11.0 — 2024-05-24 Several new calculations and analyses: • Left ventricular wall motion score index added to “Left Ventricle” category, along with semi-quantitative calculation of the left ventricular ejection fraction. Toggle switch shows typical coronary artery perfusion for each left ventricular wall segment. • Biventricular coupling index added to “Pulmonary Artery” category for helping to distinguish precapillary from postcapillary pulmonary hypertension. • Left atrial appendage emptying velocity added to “Atria” category for prediction of atrial fibrillation after cryptogenic stroke. Additional new features: • Demographics and Clinical Conditions view modified to include a toggle switch for atrial fibrillation, enhancing assessment by the Analytic Engine when this rhythm is present. 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 atrial pressure view modified to permit 3 different ways to enter mean right atrial pressure. • Many refinements of the Analytic Engine. • Updated list of echocardiography and cardiology organizations. expanded to 79 direct links, found under “Organizations” using the “?” button at the top right of the opening 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. ## Apps similar to EchoLab | App | Rating | Price | Category | | --- | --- | --- | --- | | [VizaView](https://appshunter.io/ios/app/vizaview/id1583038400) | — | Free | Medical | | [COSA: Medication Information](https://appshunter.io/ios/app/cosa-medication-information/id1626158440) | 3.7 (3) | Free | Medical | | [Med Scanner - Pharmacology](https://appshunter.io/ios/app/med-scanner-pharmacology/id1629604400) | 4.8 (22) | Free | Medical | | [NCLEX RN Prep Mastery 2025](https://appshunter.io/ios/app/nclex-rn-prep-mastery-2025/id6446394660) | 4.9 (41) | Free | Medical | | [TNRD 2022](https://appshunter.io/ios/app/tnrd-2022/id1608150860) | — | Free | Medical | | [Plumb's \| Standards](https://appshunter.io/ios/app/plumbs-standards/id1556729700) | 4.9 (3,282) | Free | Medical | ## Related topics [echocardiography medical](https://appshunter.io/ios/topics/echocardiography-medical) · [echocardiography textbook](https://appshunter.io/ios/topics/echocardiography-textbook) · [cardiac ultrasound](https://appshunter.io/ios/topics/cardiac-ultrasound) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-07.*