Question

How is brain haemodynamics expressed?

Answer 1

Brain haemodynamics

The hemodynamics of the brain are frequently expressed in terms of three variables:-

1. CBV (cerebral blood volume) is the amount of blood in a certain amount of brain tissue, usually measured in milliliters per 100 g of brain tissue.
2. CBF (cerebral blood flow) or perfusion is a measurement of the rate at which arterial blood is delivered to a capillary bed in the brain tissue.
3. CMRO₂ (cerebral metabolic rate of oxygen): The cerebral metabolic rate of oxygen (CMRO₂) is the rate at which the brain consumes oxygen and is considered a direct indicator of energy equilibrium and brain health.
4. The cerebral oxygen extraction fraction (COEF) is also considered at times.