Table 4.

Interobserver and intraoberver reliability of MR imaging

	Intrarater correlation coefficient		Kappa
	Interobserver	Intraobserver	Interobserver	Intraobserver
Foraminal height	0.75–0.81	0.79–0.88
Superior foraminal width	0.69–0.74	0.71–0.77
Middle foraminal width	0.63–0.69	0.69–0.75
Sagittal cross-sectional area	0.61–0.72	0.69–0.74
Epidural fat obliteration			0.85–0.89	0.86–0.91