The most definitive way of measuring the<unk>  is with transducers placed within the brain. A catheter can be surgically inserted into one of the brain's lateral ventricles and can be used to drain CSF (cerebrospinal fluid) in order to decrease<unk> s. This type of drain is known as an external ventricular drain (EVD). This is rarely required outside brain injury and brain surgery settings. In situations when only small amounts of CSF are to be drained to reduce<unk> 's (e.g. in IIH), drainage of CSF via lumbar puncture can be used as a treatment. Non-invasive measurement of<unk>  is being studied.
Intracranial pressure
Cerebral perfusion pressure
Cerebral autoregulation
Mean arterial pressure
Intraocular pressure
Blood volume
Segmental blood pressure
Blood pressure