A Experimental Study of Growth-plate of Developmental Long Bones:MRI,Anatomy and Histology / 实用放射学杂志

ABSTRACT

Objective To describe the MR appearancses of growth-plate of the developmental long bones,and to study the correlativity of MRI with the anatomy and histology findings.Methods 40 pigs with normal knees were examined by 1.0 T scanning system with various orientations and sequences,MR imagings were compared with the results of sectional anatomy and histology.Results According to MRI,we divided the evolution of growth plate into four developmental stages;the earlier forming stage of growth plate(aged the 80～95 days of pregnancy),the forming stage(aged the 95 days of pregnancy-2 months),the maintaining stage (aged 2 months-3.5 years),the closing stage(aged 3.5～4.5 years).The MRI manifestations of growth plate of knees reflected the findings of sectional anatomy perfectly and histology to a certain extent in each developmental stage.Conclusion MRI is very useful and helpful in dividing the developmental stages of growth-plate,guessing the foundation of anatomy and histology,diagnosing and differentiating all kinds of growth plate lesions.