Liu et al. (2023)conducted a dual-tracer PET study employing both11C-CFT DAT imaging and18F-FDG imaging to compare dopaminergic dysfunction and glucose metabolism characteristics in early-onset PD caused by different gene mutations (PRKN-EOPD and GU-EOPD) using seed-based correlation analysis. The gene discussed is PRKN; the disease is Parkinson disease.