Virtual heart depicts deadly arrhythmias in 3D
A new 3D virtual heart may help doctors identify which cardiac patients are most at risk for life-threatening arrhythmia and need a defibrillator to keep their heartbeats steady and strong. The computer model, customized for individual patients, could eventually replace the imprecise blood pumping measurement doctors now use to decide whether to put their patients through invasive surgery to place a defibrillator in the chest or abdomen.

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