[Cerebral blood flow dynamics in neonates]

An accurate and safe method for measuring cerebral blood flow in infants is important to the study of neonatal neurology. The use of Doppler ultrasound for the assessment of neonatal cerebral circulation has a great potential, because it is non-invasive and portable. The advantages of the technique have allowed it to be widely used. Doppler ultrasound has been used for the assessment of newborn cerebral hemodynamics by a number of groups for various pathophysiological conditions. The factors influencing the cerebral blood flow velocity include cerebral blood flow, cerebrovascular resistance and the diameter of the vessel. It is important to understand how physiological variables influence changes in the cerebral blood flow velocity in infants with neurological problems.