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Nuchal Translucency Quality Assurance


Nuchal translucency (NT) has been a part of the Prenatal Screening in Ontario since 2001, and sonographers have played a huge role in providing the majority of pregnant persons with excellent quality risk prediction for Down syndrome.

Both internationally and nationally, authorities have recommended that anyone providing NT measurements be a part of a formal NTQA program, as it has been noted that without it, measurement quality and therefore quality of screening deteriorates over time. Many Ontario sonographers have not been a part of the internationally recognized QA programs after initial certification, for example, with the Fetal Medicine Foundation UK.

Although we have been able to centrally track measurement data on all registered Ontario sonographers, to date we have not had the capacity to provide any feedback on that information.

BORN Ontario has developed a Nuchal Translucency Quality Assurance (NTQA) audit curve.  With the launch of the new Prenatal Screening Program at BORN, we are preparing to communicate further with individual sonographers and their supervising physicians to provide continuing updates and to open a dialogue about the program.
All sonographers who provide NT measurements for prenatal screening will be asked to register with BORN and the Prenatal Screening Program, and to access their NTQA audit curve.  For now, this registration is optional, but we strongly encourage all sonographers to register early to facilitate communication as the NTQA program is implemented.  Please use the “Nuchal Translucency Registration” link to the left.
If you have any questions, please don’t hesitate to be in touch with the Prenatal Screening Program at BORN Ontario, at 1 (833) 351-6490 or

Thank you for helping Ontario continue as a province that provides excellent first trimester ultrasound and prenatal screening.