Young Investigator Award session - Clinical * Clinical applications

66 3D speckle-tracking echocardiography in acute myocardial infarction: relationship between contrast-enhanced magnetic resonance imaging and myocardial deformation {#article-title-2} Speckle analysis of 3D echocardiography improves information on left ventricle (LV) segmental and global deformation by avoiding loss of speckles as it is the case in monoplane 2D analysis. Our goal was to evaluate the accuracy of 3D deformation parameters to detect myocardial delayed enhancement (MDE) transmural extent by cardiac magnetic resonance imaging (CMR) in myocardial infarction (MI). Methods: We included 72 patients (57.3±12.4yo) with first acute MI who underwent within 3 days following revascularization both CMR (GE 3T) and echocardiography (GE Vivid E9) including a 3D acquisition of full LV volume. Furthermore, 31 normal subjects (56.5±8.2yo) underwent a complete echocardiography. Automated analysis of 3D allowed the calculation of 3D global LV area (3DGAS), longitudinal (3DGLS), circumferential (3DGCS) and radial (3DGRS) strains (S%). Peak systolic 2D and 3D S values from the 17 LV myocardial segments were recorded. For each segment MDE was defined as transmural (MDE>66%), intermediate (33–66%) and subendocardial (