DOI: 10.36347/sjams.2021.v09i03.005

Pages: 322-328

Background: Presently the most effective way to date the pregnancy is by the use of ultrasound. Several sonologically derived fetal parameters used to date pregnancy includes biparietal diameter (BPD), head circumference (HC), abdominal circumference (AC) and femur length (FL). However the variability in assessing gestational age with these parameters goes on increasing as the pregnancy advances. The present study was undertaken to evaluate the usefulness of clavicular length (CL) as against other conventional parameters in normal pregnancies. Aims: To describe the relationships between sonologically assessed fetal clavicular length and gestational age in all pregnant women between 17 to 36 weeks. To create a nomogram between the same. Materials and methods: A cross sectional descriptive study was conducted in the department of radio-diagnosis, Bankura Sammilani Medical College & Hospital with time frame of 18 (eighteen) months from February, 2018 to July, 2019). Gestational age and fetal calvicular length was determined using Ultrasound machine PHILIPS HD7 (2.0.1) with 3-5 MHz curvilinear transducer. Data was compiled in Microsoft (MS) excel sheet and then analysed by appropriate statistical methods. Statistical software package like Software packages for social sciences (spss version 20) was utilised. Results: It was found that there is significant correlation (P<0.001) between fetal clavicular length (in mm) and fetal gestational age. Pearson’s correlation coefficient ® of clavicular length is 0.995 while the R2 value for the regression model is 0.990. Conclusions: There is statistically significant correlation between Fetal Clavicular Length (CL) and other parameters in normal pregnancies at 17 to 36 week of gestation. Clavicular length (CL) is better parameter for gestational age compared to BPD, HC and AC as seen by the R2 values of the individual regression models conducted in this study. The nomograms and quadratic equation derived from the measured CL....