Basic information on an ultrasound that can be useful when choosing the type of scanning that you should go for:


Scanning Type



2D (Dimensional) Scan

  • Least expensive.
  • Does not harm the baby
  • Safe and painless
  • Most common type of scan available.
  • Provides 2D images of baby.
  • Performed by scanning mother’s abdomen & pelvic cavity, or vaginally.
  • Able to capture image and monitor foetus growth and development.


3D Scan, 4D Scan

  • Most expensive.
  • Does not harm the baby
  • Safe and painless
  • Scan upon recommendation by doctor or upon request.
  • Provide 3D or 4D images of the  baby (depending on machine).
  • Performed by scanning on mother’s abdomen & pelvic cavity, or vaginally.
  • More graphic and detailed visual of the baby.
  • Able to detect unseen abnormalities or problems compared to 2D scanning.


Doppler Method

  • Measures blood flow in different parts of the baby’s body
  • Used to detect ectopic pregnancy or other problems.
  • Probe will be inserted into vagina.
  • Better visual displayed due to the close proximity to foetus.
  • Suitable for obese mothers and early stage pregnancies in which it is more superior than other scanning methods.

Notes – Reasons for Ultrasound:

  • Routine foetal ultrasound is conducted between 18 and 20 weeks of pregnancy.
  • It is also conducted to check on the mum’s health; monitor and evaluate foetal growth and development (heartbeat, breathing, physical form, etc).
  • It can be a bonding experience to see your baby inside the womb.
  • To help determine the baby’s gestational age and due date (determine baby’s health according to its size and physical features).
  • To check the size and location of the placenta.
  • To confirm the number of babies – twins, etc.
  • Identify possible abnormalities (enable early intervention that can save your baby).
  • Identify baby’s gender (results are not 100% accurate or conclusive)
  • To check the baby’s growth in the 3rd trimester if concerns arise.
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