FIGURE 1.

The volumetric changes according to the number of resected subsegments and representative volumetric figures in each category of resection. (a) After S3b subsegmentectomy by 1 subsegmental resection. (b) After S1 + 2 segmentectomy by 3 subsegmental resection. (c) After lingular segmentectomy by 4 subsegmental resection. (d) After left upper division segmentectomy by 6 segmental resection. (e) After lobectomy by 10 subsegmental resection; yellow, contralateral right whole lung; red, the remnant left upper lobe; purple, left lower lobe