Fig. 1From: Right ventricle speckle tracking in bronchopulmonary dysplasia: one-year follow-upRight ventricle-focused four chamber view. Strain analysis of right ventricle with speckle tracking software. The endocardial and epicardial borders were manually delineated to perform a semiautomatic trace of the myocardial movement. The magnitude and direction of each vector reflect the corresponding myocardial movement towards the reference pointBack to article page