Treatment by HIFU With Focal One® of Posterior Deep Infiltrating Endometriosis Lesions With Intestinal Involvement.

Endometriosic lesion localization and HIFU treatment will be conducted with the Focal One® device. The treatment area will be defined using sonography, pelvic MRI and a transrectal sonography data. Once the pre-defined lesion will be located with Focal One device, succession of HIFU exposure will then be used to treat maximum lesion volume, excluding a security margin of 3 mm with the digestive mucosae.