目的:通过分析平山病的磁共振成像(MRI)表现特点和结合文献复习，提高其诊断水平。方法:报道1例经临床证实的平山病患者的MRI表现，并复习文献，探讨MRI表现的相关发病机制及病理解剖基础。结果:采用西门子Sonata 1.5T磁共振机，先取生理状态下颈椎MRI检查，显示脊髓前角非对称性萎缩和脊髓背侧硬膜外静脉丛扩张；再行屈颈状态下MRI检查，可见颈髓的硬脊膜后壁向前推移，下段颈髓局限受压变细征。结论:平山病有特征性MRI表现，结合临床、常规位和功能位屈颈状态的MRI检查，可以提示平山病。
Objective To explore the MRI features of juvenile-onset ankylosing spondylitis (JoAS) for improving the level of diagnosis and therapy. Methods MRI findings of JoAS in 25 patients confirmed by clinical and laboratory results between October 2010 and September 2014 were retrospectively analyzed. Results There were a total of 67 locations of lesion in the 25 cases, including 19 in sacroiliac joint, 21 in hip joint, 6 in ischial tuberosity, 6 in crista iliaca, 9 in knee joint, 4 in ankle joint, and 2 in foot. MRI showed 63 locations with bone marrow edema, 36 with joint effusion, 26 with bone destruction, and 19 with enthesitis. Conclusions Bone marrow edema is the most common MRI manifestation of JoAS, and the main bone destruction is middle axis joint. MRI is sensitive but not specific to lesions, so differential diagnosis is needed and helpful.
目的 探讨数字X线摄影（DR）的全景拼接技术在骨关节系统疾病中的临床应用价值。 方法 回顾分析2011年1月－2013年3月采用“连续多次曝光后手动软件拼接技术”及“狭缝连续拍摄自动软件拼接技术”所得的各100例（全脊柱50例，下肢全长50例）全景拼接图像，对图像质量进行评价，分析其技术特点及应用优势。 结果 两种拼接技术所得的全景拼接图像都清晰、连续、完整、质量合格，能有效满足临床诊疗需求，在质量上两者无明显差异。前者所需时间稍长，对操作者技术及经验要求较高，后者操作更显快捷方便，但设备较昂贵。 结论 DR全景拼接技术在骨关节系统疾病中有很好的普及推广应用价值，能为骨科临床提供新的更有价值的信息。