3D Ultrasound scanning helps to evaluate the gap in the skull of a newborn baby and the brain to be safely and easily examined for abnormalities.
What Is 3D Ultrasound Scan?
A 3D ultrasound scan is a procedure that uses inaudible, high-frequency sound waves to provide images of internal organs. The process is similar to the sonar used at sea to detect other ships and solid objects.
The test is sometimes known as ultrasonography and sonography. When used to study the heart it may be called echocardiography. The resulting images are called either sonograms or echograms.
Sound waves are directed into the part of the body under study. When the waves encounter solid objects, they are reflected back and these echoes are converted into images on a television screen. This allows the operator to see the outlines of various structures such as a foetus, internal organs, and cysts.
For an ultrasound scan of the uterus, you may be asked to drink about eight glasses of water beforehand. This fills the bladder, pushing the uterus into a more accessible position.
If your arteries are being evaluated, refrain from smoking for at least 30 minutes before the test because nicotine can constrict (narrow) the arteries and thus alter the test results.
What Is 3D Ultrasound Scanning Used For?
In contrast to X-rays, which are best at picturing dense or hard structures such as bones, or gas-filled ones such as lungs, ultrasound scans are most effective at showing soft tissues and fluid-filled objects.
Ultrasound is unsuitable for examining bone.
Because radiation is not involved, one of the most common uses of ultrasound is to evaluate the progress of pregnancy, including the age, condition, and position of the foetus and the position of the placenta in the uterus.
3D Ultrasound scanning is also used as an aid for other diagnostic procedures during pregnancy.
For both amniocentesis (withdrawal of amniotic fluid for tests) and chorionic villus sampling (withdrawal of a tiny tissue sample from the placenta for genetic analysis),.an ultrasound image is used to ensure the correct positioning of the needle by means of which the sample is withdrawn.
Other uses: Other organs that can be effectively studied by ultrasound are the liver, kidneys, spleen, heart, new-born brain, gallbladder, pancreas, ovaries, testes, breasts, and lymph nodes.
The procedure is used to check for structural defects, abscesses, tumors and cysts in all these organs. Ultrasound can reveal the presence of gallstones, foreign bodies, and obstructions in bile ducts and blood vessels.
It is also used as a visual aid during internal biopsies (the removal of a small tissue sample for analysis).
This is a special type of ultrasound which makes use of the Doppler effect the effect by which a static listener or microphone hears changes in the pitch of a sound because of changes in the velocity of the sound source, or of the body producing an echo.
For example, Doppler ultrasound is often used to evaluate the condition of blood vessels. In this situation, the echo from blood flowing through arteries will be modified by the blood’s velocity and can be transformed into a graph-like picture on a cathode-ray tube.
If a blood vessel is partially or completely blocked, the flow rate will be low or absent. Flow pressures can be measured in different arteries and compared with normal readings for a healthy vessel.
This procedure is used to detect obstructions in blood vessels throughout the body but particularly in the legs. It is also used to study the cerebral arteritis to determine if there is any risk of stroke.
An important use of Doppler ultrasound is to detect and evaluate foetal heartbeat. This also allows the mother to hear her baby’s, heart.
What Happens During 3D Ultrasound Scan?
The procedure is normally carried out in a doctor’s surgery, in an outpatient clinic, or hospital radiography department. There is no discomfort and so sedation is not required.
When you have to go for the ultrasound scanning, you intimate the part of the body to ‘be examined. You then lie on an examining table and the doctor or technician will apply a paste-like gel to the skin over the area to be examined.
This forms a link between you and the machine and aids the sound-wave transmission. The doctor or technician places a small machine called a transducer over the area to be examined.
This sends out sound waves and also acts as a microphone. As the transducer is gently moved over the skin, it both emits sound waves and receives the echo.
The echo is translated into a picture by a computer that feeds an instrument called an oscilloscope. After the scan, the gel is removed and you will usually be able to leave the examination room at once.
How Much Time A 3D Ultrasound Scan Require?
The length of time needed for an ultrasound examination depends on what part of the body is being studied and for what purpose. Normally you can expect the examining process to take about 15 minutes, although it may take up to one hour.
How Long Does It Take To Get The Results?
Initial results are immediately shown on the television screen and can be photographed. However, the doctor may want to re-view the pictures in order to prepare a complete, written report which usually takes several days.
Is Ultrasound Scans Painful Or Dangerous?
No. The ultrasound examination is usually completely painless. The procedure is noninvasive and involves no known risks or complications.
Thus 3D ultrasound should not be considered a replacement for X-ray mammographic screening for breast cancer.