RESUMEN
Objective: To explore the application value of quantitative T1ρ imaging in distal radial epiphyseal plate injury of teenager divers. Methods: Totally 38 young diving athletes and 25 age-, sex-matched healthy volunteers (control group) underwent bilateral wrist conventional and quantitative T1ρsequence MR scanning. According to conventional MRI, the athletes were divided into epiphyseal plate injury subgroup and no epiphyseal plate injury subgroup. T1ρ values of distal radial epiphyseal plate different of opposite the boat phrenology area, opposite the month phrenology area and the lateral area were separately measured on T1ρ pseudo-color pictures. T1ρ values of distal radial epiphyseal plate were analyzed among groups and different ROI in same groups. Results: T1ρvalue of distal radial epiphyseal plate in epiphyseal plate injury subgroup and no epiphyseal plate injury subgroup were lower than that in control group (both P0.05). Conclusion: Quantitative T1ρimaging helps to discover changes of internal ultrastructure and cell molecular level in distal radial epiphyseal plate injury of the diver.