Ultrasound is a medical imaging technique that uses high-frequency sound waves to create images of internal organs and tissues within the body. The sound waves are transmitted through a handheld device called a transducer, which is placed on the skin and moved across the area being examined.
As the sound waves pass through the body, they bounce off different tissues and organs, producing echoes that are detected by the transducer. The echoes are then converted into electrical signals, which are processed by a computer to create real-time images of the internal structures of the body.
Ultrasound is commonly used during pregnancy to monitor the growth and development of the fetus, but it can also be used to diagnose and monitor a wide range of medical conditions, such as thyroid disease, kidney stones, and liver problems. Ultrasound is non-invasive and does not use ionizing radiation, making it a safe and widely used medical imaging technique.