【摘要】 目的　探讨氟骨症骨转换的 X线、CT和 MRI表现及影像学不同检查技术的诊断价值。方法　报告氟骨症骨转换 2 8例 ,对其影像学表现进行比较分析。结果　 2 8例患者有不同程度的氟斑牙。主要症状为四肢关节和肌肉酸痛 ,关节活动受限功能障碍 1 3例 ,脊柱疼痛2 8例 ,以腰腿痛明显 2 6例 ( 92 .85 %)。影像学表现以骨量增多为主者 1 7例 ,以骨量减少为主者 1 1例 ,其中骨小梁模糊不清 5例 ,骨皮质松化 9例 ,骨松质硬化 1 9例 ,合并椎体双凹状变形7例 ,骨盆变形 6例 ,假骨折线形成 4例 ,骨生长发育障碍 7例。结论　MRI能清晰地显示氟骨症骨转换的早期改变且诊断敏感性高更多还原

【Abstract】 Objective To investigate the characteristics and diagnostic value of X ray, CT(magnetic resonance imaging) MRI of bone turnover of skeletal fluorosis. Methods 28 cases of bone turnover with skeletal fluorosis were studied. The authors comparatively analysed the imaging appearances of the patients. Results 28 cases had apparent chronic endemic dental fluorosis. The clinical major appearances included: joints ache and muscles aching pain of four limbs, 13 cases with restricted movement or low function of joints, 28 cases with spinal pain, 26 cases with obvious lumbus and legs achs(92 85%). The imaging appearances included: 17 cases with main quantitative increase in bones, 11 cases with main quantitative decrease in bones, 5 cases with blurred bone structure, 9 cases with osteoporosis of cortical bones, 19 cases with osteosclerosis of cancellous bones, 7 cases with concave shaped vertebral bodies at both ends, 6 cases with pelvic malformation, 4 cases with false fracture, 7 cases with dysplastic bones. Conclusion MRI can show clearly early appearances of bone turnover of skeletal fluorosis and has a high sensitivity in diagnosis of bone turnover of skeletal fluorosis.更多还原