Background: Ultrafast magnetic resonance imaging (MRI) has been used succes
sfully in antenatal diagnosis.
Case: We report a case of cephalopagus conjoined twins in which ultrafast M
RI clarified how the twins were united, especially the neuroanatomy, and he
lped with antenatal counseling.
Conclusion: Ultrafast MRI can provide superior image quality to two-dimensi
onal ultrasonography and should be considered an adjunct to ultrasound for
antenatal characterization of some anomalies. (Obstet Gynecol 2000;95:1015-
7. (C) 2000 by The American College of Obstetricians and Gynecologists.).