Ultrasound (also known as a sonogram) is a method regularly used to look at images of the inside of the body. It uses a sound that you can’t hear. When an ultrasound probe is placed on the body, these sound waves bounce back and are picked up by a special machine. This is because the waves reach different parts of the body, which all have different densities, and those waves echo back different strengths. Ultrasound can be used on many parts of the body to identify conditions or monitor things. For example, it can be used during pregnancy to check a baby is growing properly, or to look at organs, like the bladder, kidneys or ovaries.
It works by using a device that is run over the skin (using a special lubricating gel) above the area or organ that is being looked at. Sound waves are sent through the skin and muscles. The device is also connected to a computer, and the sound waves bounce back and are converted to an image that can be interpreted by the sonographer. This is called an external scan. Other scans include internal and endoscopic. An internal scan allows the practitioner to study more closely organs, such as the womb. The device can be inserted into the vagina or rectum. An endoscopic scan is used to look at organs such as the stomach. A flexible tube with a light attached is inserted into the mouth.
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- Is the Ultrasound painful
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- How the Ultrasound Scan is performed
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