Table 4.

Interobserver and intraobserver agreements (ICCs) for measuring lung and lobe volumes on CT in the supine and standing positions (n = 32 volunteers)

	Interobserver agreements for measuring lung and lobe volumes (95% confidence interval)		Intraobserver agreements for measuring lung and lobe volumes (95% confidence interval)
	supine	standing	supine	standing
Total (bilateral) lung	1.000 (1.000–1.000)	1.000 (1.000–1.000)	1.000 (1.000–1.000)	1.000 (1.000–1.000)
Right lung	1.000 (1.000–1.000)	1.000 (1.000–1.000)	1.000 (1.000–1.000)	1.000 (1.000–1.000)
Right upper lobe	0.999 (0.997–1.000)	0.994 (0.983–0.998)	1.000 (0.999–1.000)	0.994 (0.983–0.998)
Right middle lobe	0.993 (0.980–0.998)	0.978 (0.940–0.992)	0.997 (0.991–0.999)	0.979 (0.942–0.993)
Right lower lobe	1.000 (0.999–1.000)	1.000 (1.000–1.000)	1.000 (0.999–1.000)	1.000 (1.000–1.000)
Left lung	1.000 (1.000–1.000)	1.000 (1.000–1.000)	1.000 (1.000–1.000)	1.000 (1.000–1.000)
Left upper lobe	0.999 (0.997–1.000)	0.999 (0.997–1.000)	0.999 (0.997–1.000)	0.999 (0.998–1.000)
Left lower lobe	0.999 (0.998–1.000)	0.999 (0.998–1.000)	0.999 (0.998–1.000)	1.000 (0.999–1.000)