EAF T2WI grade by CG-1 versus postdiscogram CT features of internal derangement—39 discs
| Annular Fissure T2WI CG-1 Grade | Discogram Pain Response and Internal Derangement Features | |||||||
|---|---|---|---|---|---|---|---|---|
| Severe Pain | ||||||||
| Concordant Pain | Nonconcordant Pain | Negative for Pain | Total | |||||
| RDef | DEG | RDef | DEG | RDef | DEG | RDef | DEG | |
| 4 | 2 | 3 | 3 | 0 | 0 | 0 | 5 | 3 |
| 3 | 4 | 2 | 2 | 1 | 1 | 2 | 7 | 5 |
| 2 | 1 | 2 | 1 | 2 | 1 | 1 | 3 | 5 |
| 1 | 2 | 6 | 0 | 1a | 1 | 1 | 3 | 8 |
| Total | 9 | 13 | 6 | 4a | 3 | 4 | 18 | 21 |
Note:—DEG indicates degenerative change Dallas Grade 3 except for 1 disc; RDef, all radial defects (Dallas Grade 3); CG-1, consensus group 1.
↵a Dallas Grade 1.