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Cerebral blood flow velocity waveforms in hydrocephalic fetuses
P Kirkinen1, R Muller, H Baumann
1Department of Obstetrics, University of Zurich, Switzerland.
Journal of Clinical Ultrasound : JCU
|September 1, 1988
Summary
Cerebral blood flow in fetuses with hydrocephalus varies significantly, showing no uniform pattern in late pregnancy. Ventricular dilatation did not correlate with these observed blood flow waveform types.
Area of Science:
- Perinatology
- Fetal Medicine
- Neurology
Background:
- Hydrocephalus is a condition characterized by excessive cerebrospinal fluid accumulation in the brain.
- Fetal hydrocephalus can impact brain development and function.
- Assessing fetal cerebral blood flow is crucial for understanding its impact.
Purpose of the Study:
- To investigate intracranial arterial velocity waveforms in fetuses with hydrocephalus.
- To characterize cerebral blood flow patterns in late-term pregnancy for hydrocephalic fetuses.
Main Methods:
- Pulsed Doppler recordings were utilized to assess intracranial arterial velocity waveforms.
- Data were collected from 9 fetuses diagnosed with hydrocephalus during the second or third trimesters.
Main Results:
- Velocity waveform indices varied, including normal, increased, and decreased patterns.
- One fetus exhibited retrograde diastolic flow, indicating abnormal cerebral perfusion.
- No uniform cerebral blood flow waveform type was observed among the hydrocephalic fetuses.
Conclusions:
- Cerebral blood flow patterns in fetuses with hydrocephalus are individually variable.
- No consistent correlation was found between the degree of ventricular dilatation and the observed velocity waveform types.