Dictionary of Cancer Terms
View in Spanish: Ultrasonography (en inglés)
Ultrasonography (UL-truh-soh-NAH-gruh-fee)
A procedure in which high-energy sound waves are bounced off internal tissues or organs and make echoes. The echo patterns are shown on the screen of an ultrasound machine, forming a picture of body tissues called a sonogram. Also called ultrasound.
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.