Sonographic characteristics of various types of intrauterine contraceptive devices.

OBJECTIVE

We sought to demonstrate the usefulness of ultrasonography for the in utero identification of different types of intrauterine contraceptive devices.

METHODS

We used sonography to differentiate among types of intrauterine contraceptive devices.

RESULTS

Each type of intrauterine contraceptive device had typical sonographic characteristics, in most cases, best demonstrated in the axial plane. Photographs of each type are shown and their sonographic appearance is discussed.

CONCLUSION

Sonographic identification of intrauterine contraceptive devices is accurate and specific. Sonography may serve as a useful method for determining the time to change the device and to identify those types that are more prone to complications.