Ultrasound is a common diagnostic procedure that uses high frequency sound waves to produce images of internal organs of the human body. Technical term used for ultrasound is sonography. Ultrasound is used for diagnosing various diseases and conditions but it is considered to be of great help in serving women healthcare needs to be precise Pregnancy. About 70 of women will go for ultrasound during pregnancy to know about presence of more than one developing baby, their due date, health of the baby, baby’s expected weight, position of baby and what not!
Different types of ultrasounds are available these days like 2D, 3D and now 4D.But what is the difference between these ultrasounds and which one to go for is still the question in people’s mind. Well answer is right here –

A 2D ultrasound is the procedure performed at 20 weeks of pregnancy. Through this your doctor can confirm that baby is growing well inside the womb, any kind of abnormality can also be detected and one of the most beautiful thing , heart beat of your little one can also be heard.2D technology gives you a black and white picture showing shadows of outline of baby’s face and body.
A 3D ultrasound is same as 2D ultrasound, only difference is that it gives you a three dimensional view. You will get a detailed, in depth view of the baby which is more of a life- like picture. It can help in finding out conditions that may not be easily seen by 2D ultrasound. It is done at 25th -35th week of pregnancy.
The newest technology that has come up is 4D ultrasound. It is same as 2D and 3D ultrasound the difference is large number of shots are taken continuously which gives a video kind of a feel to the images. It is like a window straight into the womb. You will feel like you are watching a movie consisting of various facial expressions of the baby, seeing the baby playing with fingers, sucking his thumb even blinking and smiling. Now the question coming to your mind would be, whether these new advents are safe for my baby? Don’t worry!! Doctors around the world say that using this technology does not harm your baby in fact it helps your doctor to see if any problem currently exists.
How is it done?
Procedure is simple and takes just 20 -25 minutes to complete. A gel is applied to the abdomen (tummy).Then a transducer (a device) is moved all over the pregnant woman’s abdomen. There is a monitor who allows the mother to view the baby and watch as the ultrasound is completed. At the end a photo and a video is handed over to the mother.
Why 4D ultrasound?
Provides detailed image which are more lifelike and continuous shots gives it a video like appearance.
Unlike 2D ultrasound it is not necessary to have full bladder to obtain clear image.
Medical benefits of 4Dultrasound
Reduce study time and decreased waiting time, quick examination procedure, better qualitative and quantitative information which helps in accurate diagnosis, provides add on information about a known abnormality and gives real time assessment which is not possible with 2D technology.
So if you are expecting and do not want to miss the priceless moments like first glimpse of your baby ,the first smile, the first blink ,the first kick and all the very first activities which you are not likely to forget . 4D ultrasound is now available to give you this amazing lifetime experience!!




dharnita replied. hehe thanks for uploading this helpful information here!
Although on the left of the page, the article on Sonography (Ultrasound) is also very good and detailed!