Assessment of irreducible aspects in developmental hip dysplasia by magnetic resonance imaging

BMC Pediatrics

Table 2 Global interobserver consistency between the two senior radiologists of MRI

	Doctor 1
Doctor 2	Labrum			Ligamentum teres			Contracture of the iliopsoas muscle			Fibrofatty			Joint Effusion
Doctor 2	(+)	(—)	Total	(+)	(—)	Total	(+)	(—)	Total	(+)	(—)	Total	(+)	(—)	Total
(+)	23	0	23	24	0	24	18	0	18	31	0	31	26	0	26
(—)	5	15	20	10	9	19	3	22	25	0	12	12	0	17	17
Total	28	15	43	34	9	43	21	22	43	31	12	43	26	17	43

The interobserver variability was assessed by intra-class correlation coefficient (ICC). Global interobserver consistencies between the two radiologists for labrum, ICC = 0.88, 95% CI (0.777, 0.934); for ligamentum teres, ICC= 0.72, 95% CI (0.490, 0.850); for contracture of the iliopsoas muscle, ICC = 0.93, 95% CI (0.870, 0.962); for fibrofatty pulvinar tissue and joint effusion, ICC = 1.00
The ICC values indicate fairly good consistencies between the two senior radiologists of MRI

ISSN: 1471-2431