Ultrasonics and its use in medicine.
D001783:Blood Flow Velocity; D003201:Computers; D003626:Data Display; D007089:Image Enhancement; D008722:Methods; D008866:Microsurgery; D026741:Physical Therapy Modalities; D014159:Transducers; D014464:Ultrasonic Therapy; D014465:Ultrasonics; D014463:Ultrasonography