The FemVue Saline-Air device is a new method of assessing tubal patency. The device utilizes a mixture of saline and air bubbles that can be seen passing through the fallopian tubes by ultrasound. FemVue can be efficiently performed in a physician's office and is minimally invasive. Unlike hysterosalpingogram and laparoscopic chromopertubation, it does not carry the risks of anesthesia or surgery, and doesn't expose the patient to radiation or contrast. It does, like the other two methods, carry a small risk of infection.