When fluid is placed within the uterus and ultrasound images of the uterus are taken. An image of the pelvic organs is obtained. Hysteroscopy: It can be carried out when a device is inserted via the vagina and enables the doctor to examine the uterus internally. Magnetic resonance imaging: This is also used to get images of the organs. Endometrial biopsy: It involves insertion of a catheter to take out a tissue which is microscopically observed.