Table 4. Volume of lobe and segment, and percentage of low-attenuation volume of the resected lobe compared to the lung.

	Right upper lobe	Right middle lobe	Right lower lobe	Left upper lobe	Left lower lobe
Number of patients (non-COPD/COPD)	19 (14/5)	2 (1/1)	15 (10/5)	14 (3/11)	9 (3/6)
Volume of lobe (L), mean ± SD (range)	0.94±0.29 (0.53–0.16)	0.52±0.05 (0.48–0.55)	0.88±0.21 (0.62–1.4)	1.23±0.34 (0.69–1.74)	0.91±0.26 (0.56–1.44)
LAV of the resected lobe/LAV of the lung (%), mean ± SD (range)	21.1±17.4 (6.0–73.5)	32.5±8.2 (26.8–38.3)	11.9±8 (3.3–27.4)	28.0±11.1 (15.3–55.7)	12.4±9.2 (2.6–28.5)
Volume of segment (L), mean ± SD (range)	0.31±0.1 (0.18–0.54)	0.26±0.24 (0.24–0.28)	0.21±0.059 (0.12–0.28)	0.23±0.06 (0.14–0.35)	0.23±0.08 (0.14–0.36)

Values are represented as mean ± SD. The volume of segment was calculated by dividing [volume of lobe] by [number of segmental bronchi]. LAV, low attenuation volume; COPD, chronic obstructive pulmonary disease.