AHA 2026 · CodexSynthetic model

Heart failure digital twin

Change the parameters. See each ventricle respond.

Illustrative physiologyIllustrative anatomy · no patient-specific predictions

Four-chamber cutaway

Loading heart illustration…

Right heartLeft heart

Filling

Atrial contractionVentricular contractionFilling

Atria contract, then ventricles · illustrative motion

LV ejection fraction30%

RV ejection fraction40%

Illustrative LV output4.3L/min

Adjust the model

Start with reduced LV contraction.

LV contraction 30%

10%70%

Represented by ejection fraction.

RV contraction 40%

10%70%

Independent illustrative contraction.

Heart rate 80 bpm

40 bpm140 bpm

LV filling volume 180 mL

100 mL250 mL

End-diastolic volume.

LV volume through one beat

Current modelDefault HF model

Volume (mL) · one normalized cardiac cycle

Filling volume 180 mL → end-systolic volume 126 mLStroke volume 54 mL · beat duration 0.75 s

Educational model: EF = stroke volume ÷ filling volume; LV output = stroke volume × heart rate. The AI-generated cutaway uses illustrative image deformation, not a volumetric or anatomically validated simulation. Atrial motion is schematic; chamber coupling, valve motion, loading conditions and circulatory feedback are not simulated. This is not a validated digital twin.