MRI-based synthetic CT for assessment of the bony elements of the sacroiliac joints in children

Insights into Imaging

Table 5 Intraclass correlation coefficient (ICC) obtained for all the measurements for the inter- and intra-reader reliability of synthetic CT (sCT) and CT

	Inter-reader reliability		Intra-reader reliability
Measurement	sCT	CT	sCT	CT
Maximum diagonal width of vertebral body S1	0.994	0.982	0.995	0.993
Maximum diagonal height of vertebral body S1	0.991	0.962	0.995	0.975
Maximum diagonal width of vertebral body S2	0.979	0.914	0.996	0.977
Maximum diagonal height of vertebral body S2	0.955	0.909	0.982	0.984
Maximum height of the intervertebral disc space	0.945	0.966	0.806	0.946
Maximum spinal canal width	0.996	0.994	0.998	0.995

Abbreviations: ICC intraclass correlation coefficient, sCT synthetic CT, S sacral