Advanced echocardiography: Zoom of the left ventricle with frame rates of 60-100 fps recorded in apical 4 chamber, 2 chamber and apical long axis will be performed and saved for later blinded analysis with speckle tracking analysis, evaluation of torsion and twist, and global longitudinal strain (GLS). Furthermore a zoomed view of the left atrium in 4 chamber and 2 chamber views will be saved and 3 dimensional (3D) views of the left ventricle, right ventricle and left atrium will be performed.