FIGURE 2.

Example of segmental mapping of fissural defects (involving other segments in addition to lingula segments). Multiple defects seen in Left Oblique fissure with defects corresponding to left upper lobe apical segment/left upper lobe posterior segment (LB1/2) and lingula superior segment (LB4) and lingula inferior segment (LB5). (A) LUL segments by volume, voxel density, and subtending fissure defects (multiple defects subtended by LB 1 + 2, LB4 and LB5). (B) Colour coded graphical representation of mapped segments. (C) Fissure mapping with red representing areas of fissure deficiency and green representing areas where fissures are intact