The MAGNETO study is a non-interventional, prospective, and multicenter study. It includes two cohorts: one using magnetic clip localization and the other using metallic wire localization.
Patients are enrolled by the surgeon during the preoperative consultation validating the conservative surgery with preoperative localization. The choice of cohort is left to the discretion of the center based on their routine practice. Baseline data, including patient and disease characteristics, are collected.
Depending on the assigned cohort, localization is performed either with a magnetic clip or a metallic wire. A mammogram is then performed to assess the correct positioning of the marker and its distance from the target lesion. At this stage, the radiologist completes a Likert scale satisfaction questionnaire.
Breast-conserving surgery is performed according to the hospital's standard practices. On the day of the procedure, the surgeon also completes a Likert scale satisfaction questionnaire.
Patients complete quality of life (EQ-5D-5L) and satisfaction questionnaires at several points throughout the study. Postoperative complications are also recorded.
