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INTERPRETING THE ULTRASOUND INDEXES PARENTS NEED TO KNOW

INTERPRETING THE ULTRASOUND INDEXES PARENTS NEED TO KNOW

05/10/2022

Fetal ultrasound is a method that uses ultrasound waves to create images and observe the structure as well as the activities of the baby in the uterus. This is considered a safe method, causing no harm to the fetus and providing highly effective diagnosis, accurately monitoring the development of the baby.
 
► Explanation of the abbreviations for fetal indexes during the ultrasound process
 
In this article, the American International Hospital (AIH) will provide some common terms to help parents easily understand information during the ultrasound process.
 
  • GS: Gestational Sac
  • AC: Abdominal Circumference
  • HC: Chu vi đầu
  • CRL (Crown Rump Length): the length from the top of the head, or crown, to the bottom of the buttocks, or rump
  • FL (Femur Length): The length of the femur
  • BPD (Biparietal Diameter): the largest diameter on the section of the baby’s head.
  • EFW (Estimated Fetal Weight): An estimate of the weight of a fetus
  • GA (Gestational Age): Usually based on the first day of the last menstrual period.
  • GSD (Gestational Sac Diameter): measured in the early weeks of pregnancy when the fetus has not yet developed organs. 
 
► Other abrreviations
 
  • TTD: Transverse Trunk Diameter
  • APTD: Anterior Posterior Thigh Diameter
  • HC: Head Circumference
  • AF: Amniotic Fluid
  • OFD: Occipital Frontal Diameter
  • BD: Binocular Distance
  • CER: Cerebellum Diameter
  • THD: Thoracic Diameter
  • HUM: Humerus Length
  • TAD: Transverse Abdominal Diameter
  • EDD: Estimated Date Of Delivery​
  • FTA: Fetal Trunk Cross - Sectional Area​
 
► Some related terms
 
  • LMP: Last Menstrual Period
  • BBT: Basal Body Temperature
  • FBP: Fetal Biophysical Profile
  • FG: Fetal Growth
  • OB/GYN: Obstetrics/Gynecology
  • FHR: Fetal Heart Rate
  • FM (Fetal Movement)

► The development of the fetus in each week of gestation

From 0 - 4 gestational weeks
 
At this stage, the embryo is still very small, the gestational sac has not yet moved into the uterus. Therefore, through the first ultrasound, it will help the mother to definitively determine if she is pregnant.
 
From 4 – 7 gestational weeks
 
At this stage, the embryo begins to take shape. Through the ultrasound, the expectant mother will know the diameter of the gestational sac.


 
From 7 – 20 gestational weeks
 
After the 7th week, the fetus begins to have new developments, hence there are many other indicators such as: the largest diameter on the section of the baby’s head, the length of the femur, estimated fetal weight…



From 21 – 40 gestational weeks

Entering the 21st week, the fetus has developed and reached maximum levels in terms of indicators such as length, weight, and full formation of organs.


 
At AIH, during each regular check-up and examination, our doctors will inform parents about the fetal index. At the same time, when expectant mothers sign up for the prenatal care package, the scheduled milestones for prenatal check-ups, fetal ultrasounds, and prenatal tests are clearly and specifically arranged to ensure that customers do not miss any important check-up appointments. As a result, expectant mothers can feel more at ease throughout their pregnancy journey and have the confidence to be ready to welcome their little angel into the world.
 
To provide the best maternal and fetal care during pregnancy, with the Maternal Care Package at American International Hospital (AIH), our doctors and specialists will closely accompany pregnant women throughout their pregnancy. In addition to regular check-ups and treatments, doctors also offer specific solutions for symptoms and conditions of expectant mothers in unexpected circumstances. The interdisciplinary coordination of Cardiology, Endocrinology, Nutrition, etc., along with obstetricians monitoring and providing specific advice for each case with pregnancy-related diseases and complications aims to provide comprehensive care for both mother and baby.

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For checkup and consultation at AIH:
☎️ Hotline: (028) 3910 9999 
🌏 Website: www.aih.com.vn 
📍 Address: (Entrance from 199 Nguyen Hoang Street) No.6, Bac Nam 3 Street, An Phu Ward, Thu Duc City, Ho Chi Minh City.

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