Distribution of optic nerve enhancement by final diagnosis
| Final Diagnosis | Optic Nerve Enhancement (%) | Average Extent of Enhancement (mm ± SD) | Optic Nerve Edema and Enhancement (%) | Optic Nerve Edema without Enhancement (%) | White Matter Lesions and Optic Nerve Enhancement (%) |
|---|---|---|---|---|---|
| Idiopathic optic neuropathy | 21/42 | 19.6 ± 9.3 | 21/21 | 5/42 | 12/21 |
| (50.0) | (100) | (11.9) | (57) | ||
| Ischemic optic neuropathy | 2/18 | 21.5 ± 18.5 | 1/2 | 2/18 | 1/2 |
| (11.1) | (50) | (11.1) | (50) | ||
| Optic neuropathy related to cat scratch disease | 5/9 | 3.58 ± 0.48 | 0/5 | 0/9 | 0/5 |
| (55.6) | (0) | (0) | (0) | ||
| Optic neuropathy to multiple sclerosis | 6/9 | 17.95 ± 9.9 | 5/6 | 0/9 | 4/6 |
| (66.7) | (83.3) | (0) | (66.7) | ||
| Others | 3/4 | 10.7 ± 9.8 | 3/3 | 1/4 | 1/4 |
| (75) | (100) | (25) | (25) |