Speckle tracking? Is that the technology that the government uses to mine data from your phone?! No - totally different! This is an ultrasound technology that recognizes tiny specks in the myocardium, allowing for a measurement of the movement of the heart wall. This has the potential to quantify the contractility of different parts of the heart, and therefore can be used to help diagnose numerous cardiac pathologies. At this time, not many people are using this in the emergency department. This is the first study to take a look to see if this is feasible and if it is accurate in diagnosing patients with acute coronary syndrome.