Table 3. Interobserver agreement in computed tomography evaluation (residents versus experienced radiologists).

	Residents	Experienced radiologists	Kappa
Identification of ureteral stone	36	40	0.81
Intrarenal collecting system dilatation	29	36	0.75
Perinephric fat stranding	10	13	0.78
Ureteral dilatation	16	31	0.46
Ureteral fat stranding	3	10	0.41