Abstract: Noninvasive intracranial pressure (ICP) measurement is an intriguing area of neurocritical care, with significance of guiding treatment while avoiding the risks and shortage of traditional invasive ICP monitoring. To date, noninvasive ICP monitoring mostly relies on cerebral blood flow monitoring, indirect ICP conduct detection, neuroelectrophysiological monitoring, brain metabolic monitoring,  which are essentially indirect reflection of ICP alterations. All of these methods  cannot determine ICP  accurately and reliably,  therefore the invasive measurements are still irreplaceable. Researches for exploring more ideal methods are needed.

Key words: intracranial pressure, ultrasonography, doppler, transcranial, electrophysiology, brain diseases, metabolic