title: [Noninvasive study of intracerebral circulation in premature and newborn infants with pulsed Doppler sonography. Principles, measuring technics, reference values].
abstract: This paper describes our method to evaluate neonatal cerebral circulation in a semiquantitative way by transfontanellar pulsed Doppler ultrasonography. We defined three arterial (internal carotid, basilar, and anterior cerebral artery) and three venous (internal cerebral and internal jugular vein; sinus rectus) sites for measurement of peak systolic, end diastolic, and mean velocity. Reference values, intraindividual and interindividual variation are calculated for infants between 750 and 4000 g body weight. Among all possible measurements follow up of mean velocity of the internal carotid artery in an individual infant is most reliable.
mesh_terms: D001724:Birth Weight; D001783:Blood Flow Velocity; D001925:Brain Damage, Chronic / Q000175:diagnosis*; D002560:Cerebrovascular Circulation; D004453:Echoencephalography; D006801:Humans; D007231:Infant, Newborn; D007235:Infant, Premature, Diseases / Q000175:diagnosis*; D012016:Reference Values; D012212:Rheology
vernacular_title: Die nicht invasive Untersuchung der intrazerebralen Zirkulation bei Früh- und Neugeborenen mit der gepulsten Dopplersonographie. Grundlagen, Messtechnik, Referenzwerte.