An apparatus for assessing the risk of preterm delivery and the success of induction of labor at term uses a steered ultrasound beam to assess microstructure of the cervix revealed by backscatter power attenuation at a range of angles. It is believed that objective and precise description of cervical microstructure will reveal stage of cervical remodeling an as such may reveal risk of preterm delivery and/or success of labor induction. The backscatter power loss can be combined with elasticity measurements to provide a more precise indication of tissue structure.
