The aim of the study is evaluate the fusion ultrasound performance compared to MRI and coelioscopy diagnosis when a surgical intervention is performed.

The research is about diagnosis performance between fusion ultrasound and the gold standard (MRI coelioscopy ). Fusion ultrasound is a no-invasive scientific technical which allow with security to evaluate the progress of endometriosis lesions. During 39 months, 200 patients will be follow. In one arm, there is the control group with women without endometriosis. In the second arm, there is the patient with endometriosis. We will compare monitoring differences between gold standard and fusion ultrasound ( Cost assessment,exams duration, reproductibility, the link between symptoms and evolution of the lesion size).

Inclusion Criteria:

• Patients from 18 to 50 years old
• Patient informed and who gave her non-opposition to participate in the research
• Patient with an indication for pelvic MRI and pelvic ultrasound either for the exploration of endometriosis or pelvic pain, or for another gynaecological pathology (ovarian cyst, poly-myomatous uterus, uterine malformation) outside of a proven cancer indication.
• Patient affiliated to a social security or entitled to a social security allowance

Exclusion Criteria:

• Patient with a proven cancerous pathology at the time of the prescription of the complementary examinations.
• Virgin patient
• Pregnant patient
• Patients under protective measures
• Contraindication to MRI (claustrophobia, intracorporeal metallic foreign body)

Any major patient with an indication for pelvic MRI and pelvic ultrasound outside a proven cancer indication (suspicion of endometriosis or other pathology for the control population).