Echocardiography education
See the heart's structure and function, one view at a time.
Free, physician-reviewed tutorials, technique guides, and teaching cases on echocardiography and valvular heart disease — written for students and practitioners, and cited at every step.

Medically reviewed
Every clinical page is checked by a cardiologist before publishing, with a visible last-reviewed date.
Cited to guidelines
Diagnostic thresholds and grading criteria are sourced to ACC/AHA, ESC, ASE, and EACVI guidelines and peer-reviewed literature.
Built for learners
Written for the level of a sonography or cardiology trainee — precise, but never assuming prior mastery.
Browse by topic
Nine learning tracks, from first principles to a full teaching case library.
Echocardiography Basics
Foundational physics, standard views, and the building blocks every trainee needs before scanning independently.
Imaging Techniques
Acquisition protocols for every major study type, and the analysis techniques — tissue Doppler, strain — used within them.
Ischemic Heart Disease
Wall motion by coronary territory, acute and chronic infarction, mechanical complications, ischemic MR, and viability assessment.
Valvular Heart Disease
Guideline-based echocardiographic grading of stenotic and regurgitant lesions across all four valves.
Congenital Heart Disease
Recognizing shunt lesions and structural anomalies, from pediatric screening through adult congenital follow-up.
Myocardial Disease
Assessing the cardiomyopathies — hypertrophic, dilated, restrictive, and infiltrative — and quantifying systolic and diastolic function.
Pericardial Disease
Identifying effusion, tamponade physiology, and constriction using 2D, Doppler, and respirophasic findings.
Miscellaneous
Cardiac masses, systemic and physiologic conditions, and other echocardiographic topics outside the standard disease categories.
Case Library
Worked teaching cases that connect echocardiographic findings to clinical decision-making.
Start reading
A few pages we'd recommend first — a different set each visit.
Echocardiography Basics: Physics, Modes, and Applications
An introduction to ultrasound physics, imaging modes, Doppler techniques, and their clinical applications, for learners starting echocardiography.
Read tutorial Echocardiography BasicsLeft Ventricular Ejection Fraction: Measurement Methods
Visual estimation, Simpson's biplane, Teichholz, and 3D methods for measuring left ventricular ejection fraction, and where each can mislead.
Read tutorial Imaging TechniquesTransthoracic Echocardiography: Acquisition Protocol
The standard acquisition checklist for a comprehensive adult TTE — 2D, M-mode, and Doppler images by window — plus limited/focused exam protocols.
Read tutorial Imaging TechniquesThree-Dimensional Echocardiography
How 3D echo acquisition and display modes work, common artifacts and how to avoid them, and the clinical indications where 3D adds real value over 2D.
Read tutorial Ischemic Heart DiseaseAcute Myocardial Infarction: Echocardiographic Assessment
The Universal Definition's five MI types, why wall motion changes precede symptoms and ECG, and the specific remodeling thresholds that predict a poor outcome.
Read tutorial Ischemic Heart DiseaseCoronary Territories and Infarct Localization
The full 17-segment-to-territory map, how lesion position along a vessel changes the wall motion pattern, and how to localize a culprit artery from echo alone.
Read tutorial Valvular Heart DiseaseAortic Stenosis: Echocardiographic Assessment
Etiology, clinical findings, and echocardiographic grading of aortic stenosis, with severity thresholds from the 2020 ACC/AHA and 2025 ESC/EACTS guidelines.
Read tutorial Valvular Heart DiseaseMitral Stenosis: Severity Assessment
A deep dive into grading mitral stenosis: PHT derivation and pitfalls, planimetry, PISA, 3D methods, low-gradient severe MS, and exercise hemodynamics.
Read tutorialContent on echocardiology.org is for the education of clinical learners and practitioners and is not a substitute for professional medical advice, diagnosis, or treatment. Read the full medical disclaimer.