Page 65 - SONO 260 The Fetal Head and Brain
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¢Doppler assessment of the middle cerebral artery (MCA) has been shown effective at evaluating for hypoxia in fetuses that are small for dates.
The pulsatility index (PI) of the middle cerebral artery varies with gestational age but normally decreases as the pregnancy progresses toward term.
The resistance pattern of the MCA should be greater than that of the umbilical artery and thus should be compared when fetal shunting is suspected.
¢Localized areas of hemorrhage within the cerebral hemispheres will eventually lead to the formation of cystic cavities that communicate with the ventricular system, a condition known as porencephaly.
FETAL INTRACRANIAL HEMORRHAGE (INTRAVENTRICULAR HEMORRHAGE)
