The inner cavity of the uterus and the patency of the tube can be outlined by the injection of saline or contrast like Echovist, viewing with a vaginal ultrasound probe. Polyps. adhesions and sub mucous fibroids are clearly seen. The procedure is similar to an HSG.
CONTRAST SONOHYSTEROSALPINGOGRAM is an injection of a galactose based liquid ECHOVIST into the uterine cavity and imaging with a transvaginal ultrasound. In contrast to saline, echovist outlines the tubes as well as the uterine cavity, thus equalling it to an HSG or a diagnostic hystero laparoscopy for uterine and tubal evaluation.
3D ULTRASOUND imaging of the uterus is an excellent imaging test where the accuracy equals that of a diag hysterolaparoscopy. Most of the cavity and myometrial lesions can be detected. However, the tubes are not imaged clearly as with echovist injection.
MAGNETIC RESONANCE IMAGING – MRI is a more expensive method of imaging the uterus. It is useful in locating the position of Fibroids that alter the cavity. It does not show the tubes.
THE IMAGING TECHNIQUE IS BEST CHOSEN BY THE TREATING DOCTOR ON AN INDIVIDUALIZED BASIS.