Fig. 4

Representative images of a patient without ILA at enrollment who had ILA at follow-up

Legend: Representative images are of a 77-year-old male patient who developed ILAs according to the follow-up CT scan. The patient did not have ILAs at baseline (shown in Fig. 4. a and Fig. 4. b), but some emerged at follow-up (shown in Fig. 4. c and Fig. 4. d). In the right panels of Fig. 4. a and Fig. 4. c and the lower panels of Fig. 4. b and Fig. 4. d, ILD regions segmented as GGOs, reticulations, and honeycombing using AIQCT are overlaid onto the CT images in light blue. The ILD volume was 47.3 ml (0.98%) at baseline and increased to 164 ml (3.4%) at follow-up