Sonogram dating and birthdate
All patients were examined for any other complication.Gravid females with single live fetus with no complication i.e., congenital anomaly, or growth restriction were included.Material and Methods The study was conducted in 53 pregnant women who came for ultrasonography in the Maternity & Children’s Hospital in Jeddah.Only women with 20 - 36 weeks CUA (composite ultrasonographic age) till term were included in this study.From collected data, it was found that out of 53 (100%) patients, 44 (84.62%) pregnant woman have different gestational age from US and last menstrual period (LMP).From this study we can conclude that the main method to follow fetus growth in third trimester not biparietal diameter (BPD) measurement only.Results The study was conducted in 53 women who came for ultrasonography in the third trimester.The maternal age was between 20 - 36 years with a mean maternal age of 25.79 ± 4.
Obstetrical (OB) ultrasound technicians routinely measure biparietal diameter (BPD), head circumference, abdominal circumference, and femur length (FL) to estimate gestational age in an outpatient setting  .
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This work is licensed under the Creative Commons Attribution International License (CC BY). Received 27 June 2014; revised 28 July 2014; accepted 28 August 2014ABSTRACTRapid and accurate determination of gestational age (GA) may be vital to the appropriate care of the critically ill pregnant patient and improve obstetric care through allowing the optimal timing of necessary interventions and the avoidance of unnecessary ones.
Women who participated in the study were selected on following criteria: Regular menstrual cycles, known date of last menstrual period . All scans were performed by a single ultrasonologist on one ultrasound machine; a 3.5 MHz sector transducer was used.
From the ultrasound reports biparietal diameter measurement was taken and tabulated then analyzed according to the last menstrual period and BPD in ultrasound.3.