Table 4:
Number of adverse events by imaging technique
| Technique | Transforaminal Injections | Adverse Event Number | CIRSE Grade 1 | CIRSE Grade 2 | CIRSE Grade 3 | Adverse Event Rate |
|---|---|---|---|---|---|---|
| CT | 133 | 19 | 17 | 1 | 1 | 14.3% |
| Fluoroscopy | 104 | 4 | 3 | 0 | 1 | 3.8% |
| CBCT | 39 | 1 | 1 | 0 | 0 | 2.6% |
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