https://www.khanacademy.org/science/physics/mechanical-waves-and-sound/sound-topic/v/ultrasound-medical-imaging 2021-02-07T17:14:00Z Ultrasound medical imaging Ultrasound medical imaging (also known as sonography) is a diagnostic imaging tool that uses high-frequency sound waves to create images of structures in the body. Ultrasound images are captured in ​real time​ using an external probe and ultrasound gel placed directly on the skin. They can show things that a still image like an X-ray cannot, such as blood flow or organ movement. Ultrasound images are highly useful in the diagnosis and treatment of many diseases.  David SantoPietro video https://cdn.kastatic.org/googleusercontent/PlwLj88Kvn9N62rC6LxSN4TlSqNCgYPnmav1OcMjOp55WoM68UQvsx8cgI7p3s_8nqQWFQkAjeUHPZKW-W4JqlQ_ Ultrasound medical imaging Ultrasound medical imaging (also known as sonography) is a diagnostic imaging tool that uses high-frequency sound waves to create images of structures in the body. Ultrasound images are captured in ​real time​ using an external probe and ultrasound gel placed directly on the skin. They can show things that a still image like an X-ray cannot, such as blood flow or organ movement. Ultrasound images are highly useful in the diagnosis and treatment of many diseases.  https://cdn.kastatic.org/ka-youtube-converted/sTcqtljxLOk.mp4/sTcqtljxLOk.mp4 335 12.10 Medical applications of ultrasound