Screening for Structural Fetal Abnormalities: New Imaging Modalities and Techniques
June Tan Vic Khi, MBBS, MRCOG

More than a decade has passed since the publication of the controversial Routine Antenatal Diagnostic Imaging with Ultrasound (RADIUS) Study¹ in which there was no reported benefit in perinatal outcome in the practice of routine ultrasonography for low-risk pregnancies.² Since then, countless rebuttals and criticisms of the trial have followed,³ and today, there remains little doubt of the benefits of universal screening for fetal abnormalities for all pregnancies, including low-risk pregnancies. Routine antenatal ultrasonography for all pregnancies has become an indispensable part of obstetric care.

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