Fetal anemia is a characterized by inadequate erythrocytes being delivered to the fetus and can result from many causes.
Etiology
Ultrasound
General sonographic features include:
Doppler
Fetal MRI
MRI can be used to detect fetal anemia 8 and some of its sequellae. T1 and T2 relaxation times of relevant areas e.g. the umbilical vein's blood allow for detection.
Treatment and prognosis
Intra-uterine transfusion via the umbilical vein can be successful in selected cases. The overall prognosis will depend on underlying conditions and associations.
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