No abstract available.
Extremities* ; Gestational Age*

The relationship between the growth of fetal abdominal circumference and the fetal age was determined by ultrasonography during the 28-41 weeks of gestation in 123 normal pregnancy. A closed correlation was identified and an equation was established
Gestational Age ; Abdomen ; Ultrasonography

No abstract available.
Cytogenetics* ; Gestational Age*

No abstract available.
Fetal Development* ; Gestational Age*

No abstract available.
Fetal Development* ; Gestational Age*

No abstract available.
Gestational Age* ; Humans ; Infant*

660 times of measurement of biparietal diameter in combining with analytical computer were performed on 74 female subjects of 16-42 week age of pregnancy (9 times for each subjects) to determine the fetal age. Results showed a close relation of biparietal diameter and fetus age. The speed of growth of biparietal diameter was high initially then lower gradually, with the age of 16-30 weeks, BD grown up 3 mm each week, and with the age of 31-37 weeks: 2 mm and 38-40 weeks: 1 mm
Ultrasonics ; Women ; Gestational Age

192 pregnancy were hospitalized to monitor post-term infant with fetal age over 42 weeks and fetal condition suffered from Clifford syndrome. The results showed that: fluid index examination by ultrasound are selective method to diagnose fetal suffered from early Clifford syndrome. The cut-off value of 40 mm amniotic fluid index is considered as a Clifford’s syndrome marker. This is a good method of choice for monitoring the postterm infant
Pregnancy ; Infant ; Gestational Age

Background: In the first 3 months of pregnancy, gestational age to calculate one can measure fetal size bag, the butt length of the embryo pregnancy by ultrasound. After 3 months, estimated gestational age based on peak diameter, femur length, diameter of the cerebellum, the average diameter of two eye holes.\r\n', u'Objectives: Measure and analyze the structure of the fovea, the average diameter of the fovea, as measured two other indicators of the fetus on ultrasound. Learn more connections with the diameter of the fetal development, with gestational age, peak diameter.\r\n', u'Subjects and method: Measuring the interorbital distance of the fetus for pregnant women with regular MP from 28-30 days by ultrasound and with gestational age from 14 weeks of gestation on. Using 2D ultrasound, measuring the indicators of the fetus as the distance between the fovea, peak diameter, transparent front wall, two-hump peak.\r\n', u'Results:The results showed that: there\u2019s a relation between the diameter of the orbital distance with its gestational age. It is demonatrated as followed: Y=0.7873x + 4.0273 with R = 0.8412. The distance between the fovea and peak diameter correlated by the equation Y = 2.1719x + 4.4799 v\u1edbi R = 0.7517. It is more easy and accurate to measure the interorbital distance for pregnancy in second trimester. \r\n', u'Conclusion: Basing on this result, whenever the pregnant woman could not remember exactly the first day of her last MP or her MP is long, we can use the graph of this relation to estimate the weight of the fetal and the day of delivery.\r\n', u'
Gestational Age/ ultrasonography

In this study, 123 normal pregnancies were performed 649 times of ultrasonographic examinations. Results: there is a correlation between the ratio of head/abdomen circumference and fetal age as following: primipare Y = 1.842633 - 0.029259X + 0.0000047X3, r = 0,777; multipare Y = 1.672611 - 0.022408X + 0.00000278X3, r = 0,795; (Y = Head/ abdomen circumference; X = gestational age). Determination of ratio of head/abdomen circumference will help making early diagnosis abnormal fetal development, so it's necessary to apply this ratio in clinical care
Gestational Age ; ultrasonography ; Pregnancy