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The Heart in Twelve Leads

An illustrated ECG atlas where every tracing comes from one simulated 3D heart.

By The Heart in Twelve Leads

Visit The Heart in Twelve Leadstherealryc.github.io · opens an independent site in a new tab

An interactive guide to electrocardiography in chapters, from the ventricular action potential outward to the 12-lead. Sliders for pacing rate and ion currents change the cell and the tracing, and every tracing is simulated from one 3D heart.

• Course
• ECG and EP

Topics

ECG and arrhythmia, Cardiac physiology, Anatomy and embryology

Available on

Web · Free

Where it lives

ECG and EP Lab

Looked at

Oct 30, 2026