Impact of rater experience and referral question on detecting MRI features of idiopathic intracranial hypertension.

IIH-MRI-features are underestimated in routine MRI reports and partly overcalled by less experienced neuroradiologists, driven by features less well known or methodologically difficile. Reevaluation of MRI scans by an experienced rater (and to a lesser degree specific referral question) improves diagnostic accuracy.