Table 2.

Combined imaging score, T2 mapping score, and T2 time by intervertebral disc level and age category

	Age (number) of sheep
Combined imaging score	0–1 y (n = 5)	2–4 y (n = 8)	5–7 y (n = 14)	8–11 y (n = 11)
L1L2	0 ± 0	0.9 ± 0.4	0.7 ± 0.5	2.0 ± 1.7
L2L3	0 ± 0	0.9 ± 0.4	0.9 ± 0.8	1.8 ± 1.7
L3L4	0 ± 0	0.9 ± 0.4	0.9 ± 0.8	1.9 ± 1.6
L4L5	0 ± 0	0.9 ± 0.4	0.8 ± 0.6	1.9 ± 1.6
L5L6	0 ± 0	1.0 ± 0.5	1.1 ± 0.5	1.8 ± 1.5
L6S1	0 ± 0	4.4 ± 2.0	4.9 ± 1.6	7.7 ± 2.4
T2 mapping score	0–1 y (n = 5)	2–4 y (n = 4)	5–7 y (n = 5)	8–11 y (n = 5)
L2L3	1.0 ± 0.0	2.5 ± 0.6	2.8 ± 0.4	3.2 ± 0.8
L3L4	1.0 ± 0.0	2.5 ± 0.6	2.9 ± 0.5	3.1 ± 0.7
L4L5	1.2 ± 0.4	2.6 ± 0.8	2.9 ± 0.5	3.0 ± 0.8
L5L6	1.2 ± 0.4	2.8 ± 1.0	2.8 ± 0.6	3.1 ± 0.8
L6S1	1.0 ± 0.0	3.6 ± 0.5	3.8 ± 0.3	4.0 ± 0.0
T2 time	0–1 y (n = 5)	2–4 y (n = 4)	5–7 y (n = 5)	8–11 y (n = 5)
L2L3	72.0 ± 13.4	55.8 ± 10.2	41.6 ± 1.8	34.2 ± 12.5
L3L4	77.0 ± 11.2	48.2 ± 5.0	42.0 ± 9.5	36.0 ± 15.7
L4L5	74.4 ± 13.3	54.0 ± 9.9	43.2 ± 14.2	38.2 ± 16.1
L5L6	73.2 ± 16.0	55.0 ± 16.1	44.8 ± 9.3	38.8 ± 16
L6S1	75.8 ± 11.7	34.5 ± 7.0	27.4 ± 6.8	21.8 ± 3.4

The data show that CIS and T2 mapping scores increased with age, whereas T2 time decreased.