Methods and devices for assessing intracranial pressure

摘要

Provided are methods for noninvasively assessing intracranial pressure (“ICP”) based on optic nerve sheath diameter (“ONSD”) and a blood velocity metric, such as pulsatility or resistivity index. Also provided are related devices and systems for performing the claimed methods.

主权项

1. A method, comprising:
providing an imaging device operatively connected to an intracranial pressure estimation component that comprises a processor; operating the imaging device so as to obtain optic nerve sheath diameter information and blood velocity information from a periocular blood vessel of a subject; outputting the optic nerve sheath diameter information and blood velocity information to the intracranial pressure estimation component; and executing instructions on the processor of the intracranial pressure estimation component, the instructions including receiving the optic nerve sheath diameter information and blood velocity information, estimating an intracranial pressure of the subject based on a mathematical combination of the optic nerve sheath diameter information and blood velocity information, and outputting the estimate of the intracranial pressure of the subject.