höfuðflæði
Höfuðflæði, English commonly referred to as cerebral blood flow, describes the amount of blood that circulates through the brain’s vascular system per unit time. It represents the net delivery of oxygen and nutrients necessary for neuronal and glial function and is tightly regulated by autoregulatory mechanisms that maintain cerebral perfusion across a range of systemic blood pressures and metabolic demands.
The key vessels involved in höfuðflæði are the internal carotid arteries, which supply the anterior circulation,
Measurement of höfuðflæði in the clinic is commonly performed with transcranial Doppler ultrasonography, which estimates blood
Normal cerebral perfusion ranges between 50 to 80 millilitres per 100 g of brain tissue per minute, though