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Transcranial Doppler imaging in pediatric abnormalities in older children
1Division of Neuroimaging, Department of Radiology, Children's Memorial Hospital, Chicago, IL 60614, USA. s-byrd@nwu.edu
Neuroimaging Clinics of North America
|February 12, 1999
Summary
Transcranial Doppler (TCD) is a noninvasive ultrasound technique measuring blood flow in brain arteries. It aids in diagnosing conditions like sickle cell disease, hydrocephalus, and confirming brain death in children.
Area of Science:
- Pediatric Neurology
- Diagnostic Ultrasound
- Neuroimaging
Background:
- Transcranial Doppler (TCD) is a noninvasive ultrasound method.
- It measures blood flow velocity and pulsatility in intracranial arteries.
- TCD is valuable for pediatric neurological assessments.
Purpose of the Study:
- To review the technique and indications of TCD in children.
- To highlight TCD's role in diagnosing various pediatric neurological conditions.
- To discuss common pathological findings identified by TCD.
Main Methods:
- Utilizes a 2 megahertz pulsed Doppler transducer.
- Measures blood flow velocity and pulsatility in major intracranial arteries.
- Noninvasive diagnostic ultrasound study.
Main Results:
- TCD is effective for screening and confirming diagnoses in infants and children.
- Key indications include cerebrovascular occlusive disease (especially in sickle cell disease), hydrocephalus, asphyxia, and cerebral edema.
- TCD aids in confirming brain death, arteriovenous malformations, and vasospasm.
Conclusions:
- Transcranial Doppler is a versatile and essential tool in pediatric neurodiagnostics.
- Its noninvasive nature and broad applications make it highly useful.
- TCD facilitates early detection and management of critical neurological conditions in children.