Research progress of PET molecular probes in rheumatoid arthritis

Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by synovitis with unknown etiology, which often involves the facet joints of hands and feet, showing symmetrical and invasive arthritis changes, resulting in joint deformities and even loss of function. Different from traditional imaging methods, PET provides an imaging method at the cellular level and is a potential and highly sensitive method for the evaluation of synovitis. In this paper, clinical application and research progress of PET molecular probes in RA were reviewed in order to provide ideas for the diagnosis of RA.