Ultrasonic scans, commonly known as sonography, are the second most common imaging diagnostic test after X-rays. It captures detailed images of human parts and structures such as tissues, blood arteries, and organs using high-frequency sound waves. Ultrasound is a non-invasive diagnostic procedure that uses sonar principles to identify planes, ships, and submarines, the same technology that navies use to detect planes, ships, and submarines.
Ultrasound imaging allows a clinician to discover and identify medical concerns, and the method is considered safe because it does not use radiation. As a result, ultrasonography is the main imaging diagnostic technique used to evaluate foetal development during pregnancy.
The ultrasonic scan is used to diagnose a variety of diseases affecting the heart, liver, kidneys, and abdomen, as well as to aid with biopsies and surgeries. Ultrasound, like sonar, transfers sound waves to the target location of the body, such as gallstones. If there are no stones, sound waves will pass through the gallbladder cleanly, indicating a healthy organ.
If there are stones present, however, the waves will bounce off of them, resulting in a thick image.
Some of the most generally recommended ultrasonography tests are as follows: