Real World" MRI Findings in Idiopathic Intracranial Hypertension

Neuroimaging is routinely used in the diagnosis of idiopathic intracranial hypertension (IIH), yet many patients with IIH have normal neuroimaging. Previous studies of the neuroimaging correlates of IIH have used expert graders, either fellowship-trained neuroradiologists or neuro-ophthalmologists, to identify imaging abnormalities attributable to IIH. These studies have found imaging abnormalities in as many as 70-80% of patients with IIH. We sought to determine the prevalence of imaging abnormalities on MRI and MR venogram reports generated as part of routine clinical practice at our center.