Current protocol in the United States does not include sonographic imaging for assessing proper placement of the Essure® microinsert coils. An alternative to the current requirement of hysterosalpingography for imaging the metallic coils is described using 3D and 4D multiplanar imaging. Studies showing the advantages of using optimal sonographic techniques over other imaging modalities are shown to be less invasive, simpler, and with fewer risks. A review of 3D and 4D sonography reveals advantages in imaging the Essure microdevices.This article explores optimum techniques for localizing the Essure microdevices with 3D and 4D transvaginal sonography.
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