ULTRASONOGRAPHIC ESTIMATION OF FETAL GESTATIONAL AGE IN THE SECOND AND THIRD TRIMESTERS USING VARIOUS BIOMETRIC PARAMETERS
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Keywords
Gestational age, Biparietal diameter, Femur length, Abdominal circumference, fetal kidney width
Abstract
This study aimed to evaluate the accuracy of ultrasonographic fetal gestational age estimation during the second and third trimesters using various biometric parameters. Conducted at Bilawal Medical College, Liaquat University of Medical and Health Sciences Jamshoro, the study included 198 pregnant women with singleton pregnancies and excluded those with multiple pregnancies or complications such as chronic hypertension, diabetes mellitus, and intrauterine growth retardation. The fetal biometric parameters measured included Biparietal Diameter (BPD), Femur Length (FL), Abdominal Circumference (AC), and Kidney Width (KW). The results showed a statistically significant correlation between gestational age and all biometric parameters. For example, BPD ranged from 27.1 mm at 19 weeks to 75.4 mm at 34 weeks, and similar progressive increases were observed for FL, AC, and KW. The study's findings highlight the reliability of these measurements in estimating gestational age, with Femur Length demonstrating the strongest correlation (R² = 0.883). Kidney Width, a less commonly used parameter, also proved to be a robust indicator with an R² value of 0.875.
In conclusion, the study supports the use of these four biometric parameters, particularly Kidney Width, as reliable indicators for estimating gestational age during the later stages of pregnancy. These findings can aid in improving the accuracy of expected birth date predictions and provide valuable insights into fetal development in clinical practice.
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Dr. Hafeez Ur Rehman
FCPS Radiology, Assistant Professor, Bilawal Medical College, LUMHS, Jamshoro, Sindh, Pakistan
Dr. Misbah Kanwal
Trainee M.Phil. Anatomy, Liaquat University of Medical and Health Sciences, Jamshoro, Sindh, Pakistan
Dr. Asad Ali Zardari
M.Phil. (Anatomy), Assistant Professor, Department of Anatomy, Peoples University of Medical and Health Sciences for Women, Nawabshah (SBA), Pakistan
Dr. Qurat ul Ain
MBBS, M.Phil. (Anatomy), Assistant Professor, Department of Anatomy, Peoples University of Medical and Health Sciences for Women, Nawabshah (SBA), Pakistan
Dr. Mujeeb ur Rehman Sahito
MBBS, MS General Surgery, MS Urology, Department of Anatomy, Peoples University of Medical and Health Sciences for Women, Nawabshah (SBA), Pakistan
Dr. Shazia Begum Shahani
MBBS, MPhil, Professor & Head, Department of Anatomy, Bilawal Medical College, Liaquat University of Medical & Health Sciences, Jamshoro, Sindh, Pakistan.
Dr. Umbreen Bano
MBBS, PhD, Assistant Professor, Department of Anatomy, Liaquat University of Medical & Health Sciences, Jamshoro, Sindh, Pakistan.
Muhammad Yaqoob Shahani
MBBS, D.Ophth, PhD, Associate Professor, Department of Anatomy, Liaquat University of Medical & Health Sciences, Jamshoro, Sindh, Pakistan