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Fetal Biparietal diameter
Aka: Fetal Biparietal diameter- Landmarks
- Thalamic nuclei
- Cavum septi pellucidi
- Technique
- Oval shape
- Leading edge to leading edge
- Images
- Hints
- Avoid too much abdominal pressure
- Look for Symmetric Intracranial Anatomy
- Look for X
- Accuracy
- At 20 weeks gestation: accuracy within 1 week