Pediatric Applications of Transcranial Doppler Sonography
The measurement of the cerebral circulation in children, particularly in newborns and young infants, has for a long time been high on the list of needs in clinical and scientific pediatrics. The methods available to date have either been too unreliable or unsuitable for use on children. In the course of a research project at the Department of Pediatrics of the Uni versity of Freiburg, Dr. Harald Bode has made the first systematic ex amination of the cerebral circulation of children using transcranial Doppler sonography. Over 500 children with ages between 0 and 18 years were included in this exhaustive study, documenting Doppler measurements in about 3,000 basal cerebral arteries. Basic reference values were obtained which involved adapting the methodology and available equipment to the special re quirements of the pediatrician. Moreover, the influence of biological and physiological factors on these Doppler values has also been considered in addition to those of disease and therapy. The result is an impressive record of the many applications of trans cranial Doppler sonography during childhood. It is not difficult to predict that this methodology will be of lasting value and capable of further de velopment. I hope this book receives the attention it undoubtedly deserves and that the author is able to continue in realizing his fruitful scientific ideas in clinical pediatric practice.
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Aaslid adults angiography Arch Dis Childh arterial blood pressure autoregulation basal cerebral arteries birth weight blood flow velocities cerebral blood flow cerebral circulation cerebral edema cerebral hemodynamics cerebrovascular resistance Chapter child clinical cm/sec CO2 partial pressure correlation diagnosis diastole disease Doppler examination Doppler findings Doppler parameters Doppler probe Doppler signals Doppler sonography Doppler ultrasound enddiastolic peak flow fontanelle fontanelle pressure frequency gestational age heart rate hematocrit hydrocephalus hypercapnia insonation intracranial pressure intraventricular hemorrhage large PDA measured method neonatal Neurol normal patent ductus arteriosus patients pCO2 peak flow velocity Pediatr Pediatr Res perinatal asphyxia perinatal brain damage phototherapy premature infants premature newborns preterm and term preterm infants reference values right MCA sample volume SIPH stenoses systolic systolic peak flow technique term newborns Thieme transcranial Doppler transcranial Doppler sonography ultrasonic variation coefficients vascular vessels viscosity