Final answer:
MRI and ultrasound therapy are non-invasive, safe imaging techniques for diagnosing pubic symphysis issues, and pelvic floor exercises can be used as a treatment method.
Step-by-step explanation:
A therapist can use several diagnostic tools and treatments for issues concerning the pubic symphysis, which is the joint located at the front of the pelvic girdle. Two non-invasive diagnostic imaging tools are Magnetic Resonance Imaging (MRI) and ultrasound therapy. An MRI uses radio waves to produce detailed images of the internal structures of the body, including soft tissues and bones, without exposure to ionizing radiation. On the other hand, ultrasound uses sound waves to create images, as it is particularly useful during pregnancy as it poses no risk to the fetus. As a treatment method, pelvic floor exercises can be employed to strengthen the muscles and provide relief from discomfort or instability in the pubic symphysis.