Table 2. Intra- and interobserver reproducibility of the 2 experts for the 5 parts.

Parts	Intraobserver reproducibility (n=40)						Interobserver reproducibility (n=40)
	Expert 1			Expert 2			Expert 1 vs. Expert 2
	Kappa	95% CI		Kappa	95% CI		Kappa	95% CI
2D-r	0.886	0.733–1.039		0.875	0.706–1.044		0.827	0.641–1.013
2D-s	0.896	0.755–1.037		0.842	0.670–1.014		0.792	0.598–0.986
LAH	0.886	0.733–1.039		0.890	0.743–1.037		0.772	0.560–0.984
LAM	0.942	0.830–1.053		0.881	0.722–1.040		0.881	0.722–1.040
AS	0.950	0.852–1.048		0.900	0.765–1.035		0.850	0.688–1.013

2D-r, 2-dimensional image at rest; 2D-s, 2-dimensional image at strain; LAH, levator ani hiatus; LAM, levator ani muscle; AS, anal sphincter.