Source:http://linkedlifedata.com/resource/umls/id/C0373345
NCI: A procedure in which a probe that sends out high-energy sound waves is inserted into the rectum. The sound waves are bounced off internal tissues or organs and make echoes. The echoes form a picture of body tissue called a sonogram. Transrectal ultrasound is used to look for abnormalities in the rectum and nearby structures, including the prostate.,NCI: A procedure that uses sound waves to create a video image of the pelvic organs and tissues. A small, lubricated probe placed into the rectum releases sound waves, which create echoes as they enter a pelvic organ. The echoes that bounce back are sent to a computer that translates the pattern of echoes into a picture of the specific organ under examination. This procedure is most often used to evaluate the prostate gland.