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Abdominal circumference (AC)

The distance around fetal abdomen.

The abdominal circumference is measured by sonogram from outer skin surface to outer skin surface

The appropriate transverse plane for measurement of the fetal abdominal circumference (AC) should include the umbilical vein at the level where the umbilical vein enters the liver. The ossification centers of the spine should be aligned.

 

    UV =Umbilical vein           S= Spine

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