Fetal weight (FW) estimation in late pregnancy is an important guide in obstetric care. Amniotic fluid surrounds the fetus throughout pregnancy providing nutrition & cushion. Estimation of amniotic fluid volume is an important part of routine obstetric USG scan and mostly it is done by the Amniotic Fluid Index (AFI). The amniotic fluid is also a strong indicator of possible associated congenital anomalies. So the study was carried out to find out whether there is any correlation between FW and AFI in healthy pregnant women.163 cases of healthy pregnant women were studied by an ultra-sonography in Dr. D.Y. Patil hospital, Navi Mumbai. Fetal weight and Amniotic fluid index were estimated. The mean values of AFI and FW in I group (26-28 weeks) of Gestational Age (GA) are 14.92 cm and 1319.3 gm, II group (29-31 weeks)  are 13.8 cm and 1550.4 gms, in III group  ( 32-34 weeks) 12.24 cm and 2308.04 gms, in IV group (35-37 weeks) values are 11.64 cm and 2960.4 gms, In V  group (38-40 weeks)  10.38 cm and 3584.6 gms respectively. So there was no statistically significant relationship between AFI and FW. 

Keywords: Amniotic fluid, Gestational age, fetal weight, III trimester, Ultrasonography.

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Nishigandha Sadamate

Assistant Lecturer, Department of Radiology,

Dr. D. Y. Patil, Medical College, Nerul, Navi Mumbai