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3D / 4D Ultrasound

Services / Radiology / 3D / 4D Ultrasound

3D/4D Ultrasound


An ultrasound scan, also referred to as a sonogram, diagnostic sonography, and ultrasonography, is a device that uses high frequency sound waves to create an image of some part of the inside of the body, such as the stomach, liver, heart, tendons, muscles, joints and blood vessels.

How Ultrasound imaging works?

Ultrasound, also called sonography, uses sound waves to develop ultrasound images of what’s going on inside the body. An instrument called a transducer emits high-frequency sound, inaudible to human ears, and then records the echoes as the sound waves bounce back to determine the size, shape, and consistency of soft tissues and organs.

This information is relayed in real time to produce images on a computer screen. Ultrasound technicians, or sonographers, have special training in how to perform the test. Then a radiologist or your doctor will interpret the ultrasound images. This technology can help diagnose and treat certain conditions.

How is an Ultrasound conducted?

Depending on the type of ultrasound test you are having, your doctor may offer special instructions, such as not eating or drinking anything for a number of hours before the test. Or you may be advised to drink several glasses of water in the time leading up to the test and refrain from using the bathroom to ensure that your bladder is full.

You should wear comfortable clothing that is easy to remove or partially remove. In some cases, you may need to disrobe or wear a gown, but often the doctor can easily access the area of the body that is being screened without your having to take off your clothes.

The doctor will apply a water-based gel to the area. This is so the transducer can easily glide across your skin without any air in between. He or she may be looking for specific markers and may make measurements or notes while the test is in progress.

A typical ultrasound takes between 5 to 15 minutes. Ultrasounds usually are not uncomfortable, and you are awake and alert during the procedure. Often a doctor will discuss what he or she is seeing during the test, but in some instances, you may need to wait to discuss the findings with your doctor.

Uses of Ultrasound tests

Ultrasound images have many uses during pregnancy. Determining due dates, revealing the presence of twins or other multiples, and rule out ectopic pregnancies. They also help to detect potential problems, like some birth defects, placental issues, breech positioning, and others. Later in pregnancy, doctors can even use ultrasounds to estimate how large a baby is just before delivery.
3D Ultrasound is done for further evaluation of Uterine anomalies eg., Bicornuate Uterus, Sepate Uterus, Arcuate Uterus and Unicornuate Uterus etc. It is also useful for evaluation of uterine fibroids, polyps and endometrium and also fallopian tubes
Doctors employ ultrasound imaging in diagnosing a wide variety of conditions affecting the organs and soft tissues of the body, including the heart and blood vessels, liver, gallbladder, spleen,pancreas, kidneys, bladder, uterus, ovaries, eyes, thyroid, and testicles. Ultrasounds do have some diagnostic limitations, however; sound waves do not transmit well through dense bone or parts of the body that may hold air or gas, such as the bowel.
Ultrasound guided aspiration is done for pleural effusion and for diagnostic tap and cytological and biochemical examination of fluids. Ultrasound guided aspiration of is done
Ultrasound guided FNAC is done in thyroid, breasts, neck and abdominal area for accurage deposits of the disease
Ultrasound of joints is done in case of injuries, inflammation and degenerative conditions. Hip ultrasound is done in some children fot congenital dislocation.
Trans-Rectal Ultrasound is done in male patients for evaluation of prostrate and seminal vesicles. Evaluation of seminal vesicles is indicative of infertility in male patients. TRUS is also sometimes used in young unmarried girls for evaluation of PCOD (Polycystic Ovarian Disease) when images are not clear on preabdominal scan, especially in obese girls.
Penile Color Doppler with I/V papaverine is done in male patients for evaluation of Erectile Dysfunction
B Scan for eyes is done for evaluation of posterior chamber for foreign bodies, retinal detachment and vitreous opacities.
Septal Color Doppler is done in male patients for evaluation of pain in testes, tumors, inflammation and in infertility patients for diagnosis of varicocele.
Ultrasound imaging can help doctors during procedures such as needle biopsies, which require the doctor to remove tissue from a very precise area inside the body for testing in a lab.
Ultrasounds sometimes are used to detect and treat soft-tissue injuries.

About Ultrasound

Most ultrasounds are done using a transducer on the surface of the skin. Sometimes, however, doctors and lab technicians can get a better diagnostic image by inserting a special transducer into one of the body’s natural openings:
  • In a transvaginal ultrasound, a transducer is placed in a woman’s vagina to get better images of her uterus and ovaries.
  • A trans rectal ultrasound is sometimes used in the diagnosis of prostate conditions.
  • A trans esophageal echocardiogram uses the transducer probe in the esophagus so that the sonographer can obtain clearer images of the heart. Additionally, ultrasound technology has advanced to allow for different types of imaging:
  • Doppler is a special type of ultrasound that creates images of blood flow through vessels.
  • Echocardiograms are used to view the heart.
  • 3D imaging adds another dimension to the ultrasound image, creating three-dimensional interpretations rather than the flat two-dimensional images that are made with traditional ultrasound.
  • 4D ultrasounds show 3D images in motion.
  • We can perform following USG investigation at our Ultrasound clinic with high accuracy using this advanced machine.

4D fetal ultrasounds are similar to 3D scans, with the difference associated with time: 4D allows a 3-dimensional picture in real time, rather than delayed, due to the lag associated with the computer constructed image, as in classic 3-dimensionalultrasound.

What is the difference between 3D and 4D Ultrasound?

3D ultrasound scans are still colour pictures of your baby in three dimensions. 4D ultrasound scans on the other hand are moving 3D images of your baby, with time being the fourth dimension.

Ultrasounds offer many advantages:
  • They are generally painless and do not require needles, injections, or incisions.
  • Patients aren’t exposed to ionizing radiation, making the procedure safer than diagnostic techniques such as X-rays and CT scans. In fact, there are no known harmful effects when used as directed by yourhealth care provider.
  • Ultrasound captures images of soft tissues that don’t show up well on X-rays.
  • Ultrasounds are widely accessible and less expensive than other methods.


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