BioNews

PGT (preimplantation genetic testing)

A group of techniques that look at the genetic material of embryos created through IVF. These include:

• PGT-M: preimplantation genetic testing for monogenic conditions (previously considered a form of PGD, or preimplantation genetic diagnosis)
• PGT-SR: preimplantation genetic testing for structural chromosome rearrangements (previously considered a form of PGD, or preimplantation genetic diagnosis)
• PGT-A: preimplantation genetic testing for aneuploidy (previously known as PGS, or preimplantation genetic screening)
• PGT-P: preimplantation genetic testing involving polygenic scores