Clinical Chemistry Podcast · Association for Diagnostics and Laboratory Medicine

Diagnostic Value of Digital Estimates of Trophoblastic Mosaicism in Genome-Wide Cell-Free Fetal DNA Screening

·19 min·1 clip
Dr. Martens discovered that if less than 50% of placental cells show an anomaly, the fetus has zero risk—a game-changer for prenatal screening.
This episode features Dr. Gerrit Martens discussing his research on digital estimates of trophoblastic mosaicism to improve non-invasive prenatal testing (NIPT). He explains how this approach can distinguish between placental and fetal anomalies, potentially reducing unnecessary amniocentesis by 60% while maintaining screening accuracy for conditions like Down syndrome and rare autosomal trisomies.

As heard by us

A practical look at how trophoblastic mosaicism can help separate placental-only findings from cases more likely to matter for the fetus.

This discussion tracks a practical prenatal screening problem: how cell-free fetal DNA testing can pick up rare chromosomal findings while avoiding unnecessary invasive follow-up.

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Why you'd press play

You want a clear read on when rare prenatal screen results really deserve amniocentesis.

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