<prompt> Cerebral perfusion pressure ismean aerial pressure intracranial pressurecerebral blood flow brain surface area in m2cerebral blood flow brain surface area in m2mean aerial pressure - intracranial pressure  <response>: Cerebral perfusion pressure CPP, is the difference between mean aerial pressure MAP and intracranial pressure ICP: CPP 75-105 mmHg MAP 90-110 mmHg - ICP 5-15 mmHg.Normal cerebral blood flow CBF is about 55 mLminute for every 100 g of brain tissue. Ischaemia results when this rate drops below 20 mLmin,Bailey and love 26e pg: 310 