BJR -- Raichura et al. 74 (884): 701 Figure 3

Figure 3. Diaphragmatic excursion. Coronal images of (a) full inspiration and (b) full expiration. r, fixed line of reference; m, midline. Distances X₁=X₂ and Y₁=Y₂. Absolute excursions of the left and right hemidiaphragms ( ${Delta}$ D_L and ${Delta}$ D_R) calculated as follows: ${Delta}$ D_L=D_Li-D_Le and ${Delta}$ D_R=D_Ri-D_Re. i, full inspiratory measurements; e, full expiratory measurements.