Ultrasound has been used by doctors for more than five decades to image the human body. Ultrasound uses high-frequency sound waves to produce pictures of the inside of the body and is commonly used during pregnancy to image the fetus. Transvaginal ultrasound is a more invasive procedure that is used to monitor the fetus early in pregnancy, as well as to test for conditions such as ectopic pregnancies, pelvic abnormalities, infertility and ovarian cancer.

свернуть