transvaginal ultrasound [also called TVS]
(tranz-VAJ-in-ul UL-truh-sound)
A procedure used to examine the vagina, ovaries, uterus, fallopian tubes, and bladder. An instrument is inserted into the vagina. It produces tiny sound waves. These sound waves bounce off organs inside the pelvic area and create echoes. A computer picks up the echoes and uses them to create a picture, called a sonogram.
Audio contributed by: Marisa Weiss, M.D.