Brain perfusion [Neurosurgery Wiki]

This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong.
=====Brain perfusion=====
[[Brain perfusion]] is essential for life since the brain has a high metabolic demand. By means of [[cerebrovascular autoregulation]] the body is able to deliver sufficient blood containing oxygen and nutrients to the brain tissue for this metabolic need, and remove CO2 and other waste products.

However, due to the important influences of arterial [[carbon dioxide]] levels, [[cerebral metabolic rate]], neural activation, activity of the sympathetic nervous system, posture, as well as other physiological variables, cerebral autoregulation is often interpreted as encompassing the wider field of cerebral blood flow regulation. This field includes areas such as CO2 reactivity, neurovascular coupling and other aspects of cerebral haemodynamics.

Brain [[perfusion]] in [[head trauma]] patients has been imaged using different techniques, including stable [[Xenon CT]]
((Adelson PD, Clyde B, Kochanek PM, Wisniewski SR, Marion
DW, Yonas H. Cerebrovascular response in infants and young
children following severe traumatic brain injury: a preliminary report.
Pediatr Neurosurg 1997; 26: 200-7.))
((Verweij BH, Muizelaar JP, Vinas FC. Hyperacute measurement of
intracranial pressure, cerebral perfusion pressure, jugular venous
oxygen saturation, and laser Doppler flowmetry, before and during
removal of traumatic acute subdural hematoma. J Neurosurg 2001;
95: 569-72))
and [[single photon emission computed tomography]] (SPECT)