Research lateral ventricles size in normal fetus from 20 to 40 weeks

Abstract

Purpose: Determine the value of the lateral ventricles and build charts the relationship between brain size and normal fetal gestational age 20-40 weeks at the Hospital National of Obstetrics and Gynecology. Subjects and methodology: Research was conducted in women with normal pregnancies between 20-40 weeks gestational age, sample size n = 1200, performed by 4D ultrasound ALOKA SSD 3500, using descriptive cross-sectional method. Measure the size of the lateral ventricles in the brain ventricular on the crossroad on the thalamus. The collected data is computed by: average values according to gestational age. Construction graph algorithms correlate with gestational age centile at the point 5%, 10%, 50%, 95%. Results in 1200 women were selected for the study, Value size lateral ventricles average for gestational age from 20 to 40 weeks were: 5.63 ± 0,79mm, at 20 weeks measured the size of the lateral ventricles 5,18mm, little changed during pregnancy and until the 40th week, the size is 5,99mm lateral ventricles. The size of the lateral ventricles associated with gestational age according to function: Y = 0,0003X3 - 0,0303X2 + 1,0022X - 5.4629 (Y is the gestational age, the X is the value of the lateral ventricles, R = 0.398 ). Conclusion: In normal pregnancy, the size of the lateral ventricles averages about 5mm. The change in size is negligible lateral ventricles through gestation. Lateral ventricles size less correlation with gestational age with R = 0.398