The purpose of this research is to document normal intracranial venous sinus pressures. Participants who need to have a cerebral angiogram to evaluate a medical problem not related to Idiopathic Intracranial Hypertension (IIH) will be invited to participate. Participation in this research will not require any extra visits. The intervention will take place in the interventional radiology suite when the subject has an angiogram. IIH is a condition that causes increased pressure in the brain in the absence of a tumor or other diseases that may be causing symptoms. Symptoms include headaches and visual disturbances not explained by other things. In IIH there is a narrowing in the sinuses of the brain that causes the increased pressure.
Age range
18 Years – 60 Years
Sex
ALL
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Superior Sagittal Sinus Pressure
Timeframe: during venogram, up to 10 minutes
Torcula Sinus Pressure
Timeframe: during venogram, up to 10 minutes
Dominant Transverse Sinus
Timeframe: during venogram, up to 10 minutes
Dominant Transverse-Sigmoid Sinus Junction
Timeframe: during venogram, up to 10 minutes
Dominant Sigmoid Sinus
Timeframe: during venogram, up to 10 minutes
Dominant Internal Jugular Vein
Timeframe: during venogram, up to 10 minutes
Central Venous Pressures
Timeframe: during venogram, up to 10 minutes