Cerebral Doppler Sonography

摘要: The open fontanelles are excellent acoustic windows for the image of intracranial structures and Doppler sonographic flow measurement in all major arteries veins. Normal values essential judgement pathologic flow. Major indications cerebral sonography hemorrhage hydrocephalus. Low velocities infants a risk factor deve-lopment bleeding. Retrograde diastolic blood patients with subdural, epidural or subarachnoid hemorrhage, caused by increased pressure, is prognostic unfavorable. Progressive ventricular dilatation infantile hydrocephalus may cause an increase pressure characterized decrease velocities. most sensitive method comparison petrosal part internal carotid artery. In contrast to healthy intracranially simultaneously pressure. Meningoencephalitis If ventriculitis present cerebro-spinal fluid can be displayed color Doppler. Hypoxemic-ischemic encephalopathy often associated brain edema which arteries. severe cases reduced, sometimes retrograde bad prognosis. Neonatal stroke arterial (ischemic stroke) venous (hemorrhagic occlusion. diagnosed thorough investigation Rare space occupying lesions such as cysts, tumors, arterio-venous malformations angiomas. cystic no detected. Tumors vascular vessels. detect position dependent hypo perfusion stem, who have greater die from sudden infant death. helpful diagnosis intra vital death undulating zero Different therapeutic interventions medications, frequently used neonatology, influence