echocardiogramInferior MI subtleSpeckle Tracking Strain Echocardiography3 Min Read Steve SmithonJanuary 28, 2015 Ultrasound Before ECG for Chest pain? Whoever gets there first. Use of Speckle Tracking. A male in his mid 30s with no cardiac history but some cardiac risk factors had onset of chest pain and arrived in the ED within 30 minutes of…