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MRI of the Sacroiliac Joints

Examples

T2 STIR

1. L3/L4 Vertebral segment
Score = 1 (lower anterior) +1 (depth)

2. L1/L2 Vertebral segment
Score = 2 (upper anterior +lower
anterior)

3. T12/L1 Vertebral segment
Score = 2 (upper anterior + lower
anterior)

4. T11/T12 Vertebral segment
Score = 1 (lower anterior)

Total Score = 7



T2 STIR

1. L4/L5 Vertebral segment
Score = 1 (upper anterior)

2. L3/L4 Vertebral segment
Score =1 (lower anterior) + 1 (depth)

3. T12/L1 Vertebral segment
Score = 2 (upper anterior + lower
anterior) + 1 (depth)

4. T11/T12 Vertebral segment
Score = 1 (lower anterior)

Total = 7



STIR Lesion Score

1. T8/T9 Disco-vertebral unit
Score = 1 (upper anterior) + 1 (intensity)

2. T9/T10 Disco-vertebral unit
Score = 2 (lower anterior + Lower
posterior)

3. T10/T11 Disco-vertebral unit
Score = 2 (lower anterior + lower
posterior) + 1
(upper anterior) + 1
(depth) = 4

Total = 8


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