Differences in MRI measurements between 36 patients with IH and 36 controlsa
| Diameter of the ONS (mm)b | Pituitary Height (mm) | SOV Diameter (mm) | |||||
|---|---|---|---|---|---|---|---|
| Position 1 | Position 2 | Position 3 | Position 4 | ||||
| Patients with IH (all, n = 36) | Mean | 7.0 | 6.1 | 5.4 | 5.1 | 3.1 | 2.3 |
| SD | 0.9 | 0.9 | 1.0 | 0.7 | 1.6 | 0.7 | |
| 95% CI | 6.7–7.3 | 5.8–6.4 | 5.1–5.7 | 4.9–5.3 | 2.6–3.6 | 2.0–2.5 | |
| ICC | 0.832 | 0.84 | 0.866 | 0.84 | 0.863 | 0.389 | |
| Patient subgroup I (n = 12) | Mean | 7.2 | 6.2 | 5.3 | 5.1 | 3.2 | 2.2 |
| CSF pressure 22–38 cm H2O | SD | 0.6 | 0.7 | 1.1 | 0.5 | 1.0 | 0.8 |
| Patient subgroup II (n = 10) | Mean | 6.7 | 5.9 | 5.2 | 5.1 | 2.8 | 2.4 |
| CSF pressure 40–70 cm H2O | SD | 0.6 | 0.7 | 0.8 | 0.7 | 1.3 | 0.5 |
| Patient subgroup III (n = 14) | Mean | 7.0 | 6.2 | 5.7 | 5.0 | 3.2 | 2.2 |
| No CSF pressure measurements | SD | 1.2 | 1.1 | 1.0 | 0.8 | 2.0 | 0.7 |
| Controls (n = 36) | Mean | 5.8 | 4.9 | 4.4 | 4.1 | 5.2 | 1.7 |
| SD | 0.6 | 0.6 | 0.5 | 0.3 | 1.5 | 0.5 | |
| 95% CI | 5.6–6.0 | 4.7–5.1 | 4.3–4.6 | 4.0–4.3 | 4.7–5.6 | 1.5–1.8 | |
| ICC | 0.76 | 0.728 | 0.78 | 0.732 | 0.893 | 0.634 | |
a Results of all measurements differed significantly between all patients and controls (P < .01) and also between the different patient subgroups (I∼III) and controls (P < .05). No significant differences existed among results of patient subgroups I, II, and III.
b ONS diameter was measured 3, 6, 10, and 20 mm behind the globe (positions 1–4).