Optimization With a Gamma Camera of the Individualized Patient Dosimetry in Radioiodine Therapy of Thyroid Diseases

"The gamma-camera MoTI will be used for the study to carry out 3 or 4 additional acquisitions (depending on the therapeutic indication) compared with those provided for in standard practice with a conventional gamma camera (Syngula).~Patients will receive their treatment as usual in two stages:~* 1/ Pre-therapy phase:~ 1. Administration of a tracer dose of 131I (Day 0).~ 2. Assessment of 131I uptake/fixation rate at Day 0, Day 1, Day 5.~ 3. Determination of the therapeutic dose of 131I to be administered to the patient after collegial discussion.~* 2/ Therapy phase:~ 1. Administration of the therapeutic dose (Day 0).~ 2. Thyroid scintigraphy within 4 hours of treatment before the patient returns home (Day 0).~For the study, scintigraphic acquisitions will be carried out respectively using both the standard gamma camera Syngula and the gamma camera MoTI."