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ESTIMATION OF FETAL WEIGHT WITH THE USE OF HEAD, BODY AND FEMUR MEASUREMENTS – A PROSPECTIVE STUDY

1Dr. Malka Urwah, 2Dr. Sara Muzaffar, 3Dr. Shahzeb ul Hassan

In utero estimates of fetal weight were evaluated prospectively in 109 fetuses with the use of ultrasonography models developed in a previous study. This report confirms that the best in utero weight estimates result from the use of models based on measurements of head size, abdominal size, and femur length. Since the accuracy of these models (1 SD = 7.5%) is significantly better than those based on measurements of head and body (e.g., biparietal diameter, abdominal circumference), we recommend routine use of such models in obstetric ultrasonography. Key words: Birth weight; Fetal weight; Infant, newborn; Pregnancy; Ultrasonography

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