Key Points The cardiac health specialist announced FDA approval for one of its diagnostic products. It didn't hesitate to say the HeartFlow Plaque Analysis is now available for purchase. 10 stocks we like better than HeartFlow › Just after market close on Tuesday, specialized medical device company HeartFlow (NASDAQ: HTFL) was the very picture of health, as far as its stock was concerned. The company's shares saw a robust 14% boost in price, thanks largely to a nod from one of the world's top healt ...