EchoLab

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.
EchoLabs 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.

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 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 Simpsons 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 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, 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.,

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