There are 2 tests to screen for ovarian cancer; they are transvaginal ultrasound (TVUS) and the CA-125 blood test. A transvaginal ultrasound (TVUS) is a type of pelvic ultrasound used by doctors to examine female reproductive organs. This includes the uterus, fallopian tubes, ovaries, cervix, and vagina. “Transvaginal” means “through the vagina.” This is an internal examination.