Results of the analysis of ISSON width in 19 patients with CSHa,b
| Patient No. | ISSON Width | ISSON Width (Gross Visual Inspection) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Position 1 | Position 2 | Position 3 | Position 4 | ||||||
| –/N | MM | –/N | MM | –/N | MM | –/N | MM | –/N | |
| 1 | N | 1.1 | – | 0 | – | 0 | – | 0 | – |
| 2 | – | N.A. | – | 0.6 | – | 0.6 | – | 0.7 | – |
| 3 | N | 1.2 | N | 1.1 | – | 0.7 | – | 0.8 | – |
| 4 | – | 0 | – | 0 | – | 0 | – | 0 | – |
| 5 | – | 0 | – | 0 | – | 0 | – | 0 | – |
| 6 | – | 0 | – | 0 | – | 0 | – | 0 | – |
| 7 | – | 0 | – | 0 | – | 0 | – | 0 | – |
| 8 | – | 0 | – | 0 | – | 0 | – | 0 | – |
| 9 | N | 1.6 | N | 0.9 | – | 0.7 | – | 0 | – |
| 10 | N | 1.2 | – | 0.6 | – | 0.7 | – | 0 | – |
| 11 | – | 0.8 | – | 0 | – | 0 | – | 0.8 | – |
| 12 | N | 1.1 | – | 0 | – | 0 | – | 0 | – |
| 13 | – | 0 | – | 0 | – | 0 | – | 0 | – |
| 14 | N | 1.2 | – | 0 | – | 0 | – | 0 | – |
| 15 | – | 0.8 | – | 0 | – | 0 | – | 0 | – |
| 16 | – | 0.7 | – | 0 | – | 0 | – | 0 | – |
| 17 | – | 0 | – | 0 | – | 0 | – | 0 | – |
| 18 | N | 1.4 | N | 1.2 | – | 0.7 | – | 0 | – |
| 19 | – | 0 | – | 0 | – | 0 | – | 0 | – |
| Mean | 0.6 | 0.2 | 0.2 | 0.1 | |||||
| SD | 0.6 | 0.4 | 0.3 | 0.3 | |||||
| Sensitivity | 61% | 84% | 100% | 100% | 100% | ||||
| CI (95%) | 36%–83% | 60%–97% | 85%–100% | 85%–100% | 85%–100% | ||||
| ICCc | 0.908 | 0.859 | 0.862 | 0.824 | |||||
| κc | 1 | ||||||||
a Measurements were obtained in 4 intraorbital positions approximately 3, 6, 10, and 20 mm behind the eyeball. Specificity was 97% each.
b –indicates decreased (<1.0 mm, [position 1]; <0.9 mm, [positions 2–4]). Regarding gross visual inspection,–corresponds to a reduction or absence of CSF in the ISSON.
c ICC and κ values were computed for results of 3 readers.