Doppler ultrasound study of the anterior cerebral artery in neonates.
In neonates doppler ultrasound of the anterior cerebral artery (ACA) enables cerebral haemodynamics to be studied in a non-invasive manner at the patient's bedside. The signal of the pericallosal artery is recorded through the fontanelle with a 7.5 mHz real-time probe. Two parameters are monitored: Pourcelot's resistance index and mean velocity which reflects blood flow rate. Having established normal values according to the gestational and post-natal ages, the authors describe the changes in cerebral circulation observed in such pathological situations as intraventricular haemorrhage, apnoea, patent ductus arteriosus, hydrocephalus and post-asphyxia syndrome.
Sevely
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A
Service de Neuroradiologie, Hôpital Purpan, Toulouse, France.
Fries
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F
Regnier
C
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Manelfe
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C
D001049:Apnea / Q000000981:diagnostic imaging; D001238:Asphyxia Neonatorum / Q000000981:diagnostic imaging; D001783:Blood Flow Velocity; D002536:Cerebral Arteries / Q000000981:diagnostic imaging*; D002543:Cerebral Hemorrhage / Q000000981:diagnostic imaging; D002560:Cerebrovascular Circulation; D004374:Ductus Arteriosus, Patent / Q000000981:diagnostic imaging; D015150:Echocardiography, Doppler; D005865:Gestational Age; D006801:Humans; D006849:Hydrocephalus / Q000000981:diagnostic imaging; D007231:Infant, Newborn; D014655:Vascular Resistance