Fetal Nasal Bone Assessment
95% detection rate with a 2% false positive rate
Research shows that the fetal nasal bone is absent in approximately 70% of all Down syndrome cases. With the Fetal Nasal Bone Assessment option added to the Ultra-Screen protocol, physicians can raise the detection rate for Down syndrome to 95% and effectively eliminate the need to screen for Down syndrome beyond the first trimester. (References)
Fetal Nasal Bone Assessment is a non-invasive procedure that helps provide even greater reassurance to patients undergoing their first trimester risk assessment for Down syndrome. It is performed during the patient’s NT ultrasound examination so there are no additional patient visits required as a result of electing this option. Physicians and sonographers must be credentialed in fetal nasal bone assessment. In part, this credentialing can be achieved by attending a one-day seminar, which may also qualify for CME credits.
Benefits of Fetal Nasal Bone Assessment:
- Raises Down syndrome detection to 95% while maintaining screening in first trimester (References)
- 2% false positive rate vs. 5% (Reference)