AUTHOR=Moreno-Ajona David , McHugh James Alexander , Hoffmann Jan 

TITLE=An Update on Imaging in Idiopathic Intracranial Hypertension

JOURNAL=Frontiers in Neurology

VOLUME=Volume 11 - 2020

YEAR=2020

URL=https://www.frontiersin.org/journals/neurology/articles/10.3389/fneur.2020.00453

DOI=10.3389/fneur.2020.00453

ISSN=1664-2295

ABSTRACT=Neuroimaging plays an essential role in the diagnostic workup of idiopathic intracranial hypertension with the aims to exclude secondary causes of elevated intracranial pressure and well as to identify imaging signs that are commonly observed in this disorder. As a valuable expansion of brain imaging, the imaging of the retina using optical coherence tomography has been of increasing value. In particular this is the case with the latest devices that allow a more accurate distinction between a reduction in retinal nerve fiber layer thickness due to an improvement of papilledema or due to a worsening caused by optic nerve atrophy. While optical coherence tomography does not yet replace the other elements of the diagnostic workup it is likely to play an increasing role in diagnosis and follow-up of idiopathic intracranial hypertension.
The review will focus on the main findings in neuroimaging including structural and vascular alterations as well as on the relevance of optical coherence tomography.