Ultrasonographic estimation of gestation age and growth pattern of foetuses in second trimester of pregnancy by multiple growth parameters

Abstract

Background and Aim- Fetal biometry rely on racial segment attributes, sustenance, hereditary qualities, and a lot more on ecological elements of a specific populace. Therefore, this study aimed to assess various fetal parameter and to establish a regression equation to predict the gestational age (GA) of pregnant women among the population of Western Maharashtra. Methodology- A descriptive, prospective study was conducted on 420 pregnant women in their second trimester (i.e. 14 to 27 weeks of gestation). Thirty women from each week of gestation were studied by ultrasonography for estimation of GA of the fetus. Various parameters such as biparietal diameter (BPD), femur length (FL), head circumference (HC), and abdominal circumference (AC) were studied and compared to the normal standards for GA, based on the initial sonogram from first trimester. Result-. Maximum (3.75 mm) and minimum (1.41 mm) increase in BPD was seen in 21-22 and 26 - 27 weeks, respectively. Maximum (4.50 mm) and minimum (0.42 mm) increase in FL was seen in 19 - 20 and 26 - 27 weeks, respectively.