Fig. 3From: Feasibility and usefulness of ultrasonography in idiopathic intracranial hypertension or secondary intracranial hypertensionReciever Operator Curve (ROC) for optic nerve sheath diameter (ONSD) given in [mm] related to intracranial pressure (ICP). Raised ICP is defined as an ICP >25 cmH2O. ONSD accurately predicted an elevated ICP (AUC = 0.85; 95 %; CI 0.68 to 0.94; p = 0.0001). AUC area under the curve, CI confidence intervalBack to article page