Differentiation of aneurysms from extradural to intradural by MR fusion images and relationship to the origin of the ophthalmic artery
| MR Fusion Findings | ||||
|---|---|---|---|---|
| Ophthalmic artery | Intradural | Transdural | Extradural | Total |
| Distal | 16 | 2 | 1 | 19 |
| Same level | 4 | 1 | 3 | 8 |
| Proximal | 3 | 8 | 11 | |
| Not visible | 1 | 1 | ||
| Total | 21 | 6 | 12 | 39 |