Main indications: 
-Exploration and monitoring of multinodular goiter  
-Functional characterization of the isolated thyroid nodule: hot nodule and cold nodule.
 -Estiological diagnosis of hyperthyroidism (Reference examination): 
*Graves' disease 
*Toxic adenoma Toxic or Basedowified multiheteronodular goiter *Hashitoxicosis
 - Exploration of congenital hypothyroidism and in adults.