Assessment of Venous Drainage in Idiopathic Intracranial Hypertension

Subjects will be placed in supine position. The systematic use of a headset will reduce the noise inherent to the machine. Standard MRI examination using a 32-channel head coil consists of angiographic, morphological and phase-contrast 2D flow sequences. The flow planes are set perpendicularly to the structure axis (blood or CSF regions). The velocity measured in the pixels inside the region of interest allow the calculation of a mean flow rate as well as the volume displaced during a cardiac cycle.

A cardiac synchronization system using peripheral ECG allows the synchronization with the subject's heart rate.