Summary of LEA injections
| Group and Injection | Reflux | Extent | Density | Technical Complications | LEA Used |
|---|---|---|---|---|---|
| Group A: dual-lumen balloon catheter | |||||
| 1a | 2 | 3 | 2 | No | Onyx 18 |
| 2a | 1 | 4 | 2 | No | Onyx 18 |
| 3a | 1 | 4 | 2 | No | PHIL |
| 4a | 2 | 3 | 1 | No | PHIL |
| 5a | 1 | 4 | 2 | No | PHIL |
| 6 | 3 | 3 | 1 | No | PHIL |
| 7a | 2 | 3 | 2 | No | Onyx 18 |
| 8 | 3 | 4 | 2 | No | Onyx 18 |
| Group B: double-microcatheter technique | |||||
| 9 | 3 | 2 | 2 | No | Onyx 18 |
| 10 | 3 | 3 | 1 | Yes | Onyx 18 |
| 11 | 3 | 4 | 2 | No | Onyx 18 |
| 12 | 3 | 3 | 2 | Yes | Onyx 18 |
| Group C: single-microcatheter (controls) | |||||
| 13 | 3 | 1 | 1 | No | Onyx 18 |
| 14 | 3 | 3 | 1 | Yes | PHIL |
| 15 | 3 | 3 | 1 | No | PHIL |
| 16 | 3 | 1 | 0 | No | Onyx 18 |
| 17a | 2 | 4 | 1 | Yes | PHIL |
| 18 | 3 | 1 | 1 | No | Onyx 18 |
↵a Denotes a successful injection, defined as an injection with a grade >2 for extent of infiltration without excessive reflux (reflux score of <3).