a renal ultrasound is a video taken of the kidneys using ultrasonic waves. a probe placed against the skin reflects high-energy sound waves off the kidneys and a computer converts the information into images on a screen. renal ultrasounds are usually performed to try to find the cause of kidney damage or kidney failure. a renal ultrasound may be also done to look for cysts stones masses or other abnormalities of the kidneys even when the kidneys are functioning normally. renal ultrasound is a painless and typically risk-free test.
what is a renal ultrasound? . a renal ultrasound is a video taken of the kidneys using ultrasonic waves. a probe placed against the skin reflects high-energy sound waves off the kidneys and a computer converts the information into images on a screen.