Table 3.

Intra-observer agreement between radiography (CR) and computed tomography (CT) identifying a normal and abnormal lung patterns in the four quadrants of the thorax.

Quadrant	CrV		CrD		CdV		CdD		Total
Evaluator	Ev1	Ev2	Ev1	Ev2	Ev1	Ev2	Ev1	Ev2	Ev1	Ev2
Agreement	29	23	21	17	20	15	11	10	81	75
By chance	1	7	9	13	10	15	19	20	39	45
Kappa	0.97	0.70	0.57	0.24	0.50	0	−0.73	0.5	0.52	0.4

CrV, cranioventral; CrD, craniodorsal; CdV, caudoventral; CdD, caudodorsal.