Dictionary of Cancer Terms
View in Spanish: Ecografía intraoperatoria
Intraoperative ultrasound (IN-truh-AH-puh-ruh-tiv UL-truh-SOWND)
A procedure that uses ultrasound (high-energy sound waves that are bounced off internal tissues and organs) during surgery. Sonograms (pictures made by ultrasound) of the inside of the body are viewed on a computer to help a surgeon find tumors or other problems during the operation. Also called IOUS.
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.