Synonyms: transrectal ultrasound of the prostate (TRUSP), transrectal ultrasonography
A procedure used to examine the prostate gland with ultrasound. An instrument is inserted into the rectum, and sound waves bounce off the prostate. These sound waves create echoes, which a computer uses to create a picture called a sonogram.
This diagram shows how a biopsy is done but it is the same for transrectal ultrasound, just minus the needle.
A video is available at Phoenix5 that includes this procedure, including showing the computer screen. You can see a frame from the video and read about the video first.