There are different kinds of ultrasound scans, depending on which part of the body is being scanned and why. They can also be carried out in community locations such as GP practices, and may be performed by other healthcare professionals, such as midwives or physiotherapists who have been specially trained in ultrasound. ![]() They usually take place in a hospital radiology department and are performed either by a doctor, radiographer or a sonographer. Most ultrasound scans last between 15 and 45 minutes. In some cases, you may also be given an injection of a harmless substance called a contrast agent before the scan, as this can make the images clearer. If you need a sedative to help you relax, this will be given through a small tube into the back of your hand or into your arm. ![]() avoid eating or drinking for several hours before the scan – this may be needed before a scan of your digestive system, including the liver and gallbladderĭepending on the area of your body being examined, the hospital may ask you to remove some clothing and wear a hospital gown.drink water and not go to the toilet until after the scan – this may be needed before a scan of your unborn baby or your pelvic area.Preparing for an ultrasound scanīefore having some types of ultrasound scan, you may be asked to follow certain instructions to help improve the quality of the images produced. This image is displayed on a monitor while the scan is carried out. You can't hear these sound waves, but when they bounce off different parts of the body, they create "echoes" that are picked up by the probe and turned into a moving image. How ultrasound scans workĪ small device called an ultrasound probe is used, which gives off high-frequency sound waves. There are also, however, many other diagnostic tests that take advantage of ultrasounds.An ultrasound scan, sometimes called a sonogram, is a procedure that uses high-frequency sound waves to create an image of part of the inside of the body.Īn ultrasound scan can be used to monitor an unborn baby, diagnose a condition, or guide a surgeon during certain procedures. sonogram are expectant parents since most unborn babies are examined carefully well before leaving the womb. Most people looking to understand an ultrasound vs. The best-known use for ultrasonic exams is in fetal monitoring and obstetrics. This means that ultrasounds won’t cause any damage to the tissue and the patient doesn’t even need to prepare. The Advantages of Ultrasoundĭoctors prefer ultrasounds in many situations because they do not rely on radiation, like other diagnostic tests do, and they are also noninvasive. This image can then be recorded for use later or viewed live on the connected screen. In other words, the ultrasound machine collects data based on the speed with which sound waves return and uses this to form an image depicting the interior of the patient’s body. The probe is then guided on top of the patient’s skin, operating like a submarine would when using sonar. It is typically done using a handheld probe that is coated using a water-based gel. sonogram, it helps to know how an ultrasound is performed. To better understand the difference between an ultrasound vs. How Is An Ultrasound Performed? How to Perform Because of this, it is safe to use on pregnant women without endangering them or their fetus. While X-rays and CT scans rely on radiation to create the image, an ultrasound does not. ![]() Sonograms are also used to check patients for medical issues like internal bleeding or other problems that wouldn’t be visible from the outside. This allows them to determine the due date and check for abnormalities. Sonograms are particularly helpful during pregnancy as they let doctors create a live feed with images of the fetus which is growing. It can be compared to an x-ray since it gives medical professionals the ability to visualize the internal body, which is useful for diagnostics. The image generated during the ultrasound procedure is known as a sonogram. See also What Does Masturbating Mean? Sonogram
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