Nuchal Translucency in First-Trimester Ultrasound Screening for ...

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Criteria for NT Measurement (1) Trans-abdominal OB U/S, sagittal view PACS, BIDMC 1.Crown-Rump 1.Crown Rump Length = 45-84mm 45 84mm (approximately 11-14wks). 11 14wks). 2.Mid-sagittal 2.Mid sagittal plane with fetus in neutral position: Neck flexion decreases NT; Neck extension increases NT.
Criteria for NT Measurement (2) Trans-abdominal OB U/S, sagittal view PACS, BIDMC Findings: 1. Nasal Bone 2. Chin 3. Increased NT (4.2mm) 3.Enlarge image: upper 2/3 of fetus. 4.Identify potential false positives: non-fused non fused amnion, nuchal cord, neck extension. 5.Measure maximal translucency in greatest dimension: from outer soft tissue edge to inner nuchal membrane edge.
Page 1 and 2: Nuchal Translucency in First-Trimes
Page 3 and 4: Agenda Introduction to Our Patients
Page 5: Defining Nuchal Translucency Fluid
Page 9 and 10: How does Nuchal Translucency fit in
Page 11 and 12: Practice Guidelines for Trisomy 21
Page 13 and 14: Advantages of Screening with Abnorm
Page 15 and 16: You identify a neck mass during fir
Page 17 and 18: Potential Mechanisms for Increased
Page 19 and 20: Increased NT and Fetal Abnormalitie
Page 21 and 22: •41 y/o G5P2 •Sent for early OB
Page 23 and 24: Outcome for Our First Patient: Tris
Page 25 and 26: Patient 2: NT Measurement on Fetal
Page 27 and 28: Summary Nuchal Translucency, as par
Page 29: Resources “ACOG ACOG Practice Bul

Nuchal Translucency in First-Trimester Ultrasound Screening for ...

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