“In a Baltimore lab, Natalia Trayanova and her team at Johns Hopkins University are creating computational models of hearts. Each one mirrors the heart of a real patient with a potentially fatal arrhythmia, an irregular heartbeat that is often a result of scarring from heart attacks or other conditions.

The replicas, or ‘digital twins,’ appear as personalized 3-D hearts on computers, with areas of scarring shown in white. The team can use them to model how and where to make new tiny scars through a procedure called ablation to fix the arrhythmia.”

From Wall Street Journal.