Figure 1

Chest segmentation of MRI-LUS image. A) The axial MRI cuts were segmented in anterior (A), lateral (L) and posterior (P) regions in both lungs. B) The coronal MRI view was used to divide the lungs in superior and inferior lungs regions. C) The LUS assessment followed similar chest regions than MRI images. The dotted black axial line separated the lungs in superior and inferior portions. Ovals depicted where the probe is placed in the classical LUS approach: mid-clavicular, lateral and posterior axillary lines. D) The posterior regions were also assessed by the inferior postero-basal LUS view.