Measuring Intracranial Pressure


About this study

The goal of this study is to evaluate the efficacy of B-scan ultrasonography in identifying increased ICP in patients with idiopathic intracranial hypertension via measurement of optic nerve sheath diameter. 

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria:

  • Papilledema from idiopathic intracranial hypertension
  • Pseudopapilledema

Exclusion Criteria:

  • Age <18
  • History of prior optic neuropathy, optic nerve trauma, known sarcoidosis or other systemic illness known to commonly cause optic nerve involvement
  • Brain or CNS mass/lesion that could be contributing to increased ICP
  • Media opacity that could obscure accurate acquisition/interpretation of imaging or exam findings

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status Contact

Rochester, Minn.

Mayo Clinic principal investigator

John Chen, M.D., Ph.D.

Closed for enrollment

Contact information:

John Chen M.D., Ph.D.


More information


Publications are currently not available