Table 4. Interobserver Agreement for Evaluation of Nerve Compromise.

	Interobserver Agreement (Kappa)
	2D TSE	3D TSE (Ax and Sag)	3D TSE (Ax, Sag, Cor, and Obl Cor)
Overall nerve compromise	0.93 (0.87, 0.99)	0.88 (0.81, 0.96)	0.91 (0.83, 0.98)
Posterior or posterolateral disc herniation	0.97 (0.94, 1.00)	0.94 (0.89, 1.00)	0.93 (0.88, 0.99)
Lateral recess stenosis	0.88 (0.79, 0.97)	0.92 (0.87, 0.98)	0.92 (0.86, 0.98)
Neural foraminal stenosis	0.94 (0.88, 1.00)	0.94 (0.88. 1.00)	0.90 (0.82, 0.97)
Extraforaminal disc herniation	0.95 (0.89, 1.00)	0.91 (0.85, 0.98)	0.97 (0.92, 1.00)

Data in brackets are 95% confidence interval. All p values are < 0.001. Ax = axial, Cor = coronal, Obl Cor = obligue coronal, Sag = sagittal, TSE = turbo spin-echo, 2D = two-dimensional, 3D = three-dimensional