Abstract:
Ultrasound has been used for evaluate of the gestational age of the fetus . Umbilical cord diameter is not used in estimation the GA routinely.
The main objective of this study was to determine the GA by Ultrasound measuring the umbilical cord diameter in second and third trimester of pregnancy .As well as to compare between GA by umbilical cord diameter, Biparietal diameter, Femur length. Abdominal circumference and fetal weight.
The across sectional study was conducted at 50 pregnant woman from Alban jaded hospital and Alhekma health center come for rotein follow up of BPD,FL,AC ,FW and UCD. Using gray scale .those measured transverse section of UC. Also taken maternal age, parity and gravity. From December 2016 to march 2017.
The study show that It show strong relation between GA by UCD and GA by BPD,FL,AC and FW.
And the mean of BPD mm 67.5,FL mm 48.4,AC mm 238.9, FW gm 1608.7
And the mean of GA BPD weak 27.3,GA FL week 27.8,GA AC weak 27.9,UC d114.2, UCd2 12.1
The SD OF BPD mm 20.1,FL mm 16.7, AC mm 80.1, FW gm 1169.8
The SD OF GA BPD weak 7.5,GA FL weak 7.1,GA AC weak 7.1,UCd1 3.8,UCd2 3.4
The result showed that there is a strong relationship between age of fetus by UCD and age of fetus by BPD and FL,AC, FW
Where rate of age increases by BPD 4mm per 5mm for first diameter and 3mm per 5mm for second diameter.
Increased equally by 4mm per 5 mm between UCD and FL,AC for UCD1,UCD2
And between UCD1 and UCD2 and FW found the FW increased by ,002 gm per 5mm.
The study concluded that UCD should be used for assessment of GA.
