Can optic nerve sheath diameter assessment be used as a non-invasive tool to dynamically monitor intracranial pressure?
This study aims to detect whether the optic nerve sheath diameter (ONSD) can be used to dynamically monitor intracranial pressure Upper Spray Arm (ICP).Adult patients undergoing invasive ICP monitoring on the day of admission are included in this study.For each patient, the ONSD is first measured in the supine position and then in the 30∘ head-up