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| Fetal Parameter | Intra‐observer | Inter‐observer | Other studies |
|---|---|---|---|
| Head circumference | 1.2% | 2.1% | Hadlock ‘82 Inter 1.2% |
| BPD | 1.1% | 1.3% | Hadlock ‘82 Inter 1.5% |
| OFD | 1.7% | 2.8% | |
| Femur | 1.6% | 2.7% | Hadlock ‘82 Inter 2.8% |
| Abdominal circumference | 1.3% | 2.2% | Deter ‘82 Inter 2.4% |
| EFW BPD,HC,AC,FL | 1.9% | 3.1% | Gull ‘00 Intra 2% Inter 5.8% |
