Table 1.
Descriptive statistics for the percentage of the extent of vertebral body bone marrow edema and the T1-w signal ratios of edema to unaffected vertebral bone.
| Percentage Edema Extent (%) | T1-w Signal Ratios | ||
|---|---|---|---|
| Modic type 1 | Mean | 31.83 | 0.82 |
| Median | 30.00 | 0.82 | |
| Standard deviation | 23.66 | 0.14 | |
| Minimum | 5.00 | 0.53 | |
| Maximum | 100.00 | 1.22 | |
| Range | 95.00 | 0.70 | |
| Early spondylodiscitis | Mean | 55.61 | 0.59 |
| Median | 60.00 | 0.56 | |
| Standard deviation | 28.18 | 0.14 | |
| Minimum | 5.00 | 0.34 | |
| Maximum | 100.00 | 0.91 | |
| Range | 95.00 | 0.57 | |
| Advanced spondylodiscitis | Mean | 91.60 | 0.61 |
| Median | 100.00 | 0.61 | |
| Standard deviation | 18.26 | 0.13 | |
| Minimum | 10.00 | 0.29 | |
| Maximum | 100.00 | 0.96 | |
| Range | 90.00 | 0.66 |