摘要
目的探讨ＭＲ扫描对椎体原发性骨质疏松压缩性骨折及转移瘤所致的压缩性骨折的诊断及鉴别诊断的价值及表现。材料与方法对３０例椎体原发性骨质疏松压缩性骨折和３０例转移瘤压缩性骨折进行回顾性分析。结果 椎体原发性骨质疏松性压缩骨折的特点：椎体变形可分为楔形变、双凹形、扁平形，椎体后上角后突入椎管具有特异性；椎体信号特点：椎体终板下或椎体中央带状Ｔ１ＷＩ低信号或椎体后部等信号外，椎体前部低信号，增强扫描后椎体信号强度与相邻正常椎体相同。转移瘤所致压缩性骨折的特点：椎体后部皮质后突，Ｔ１ＷＩ上椎体内及椎弓根弥漫性低信号，增强扫描呈明显不均匀强化。结论增强扫描和非增强扫描的ＭＲ检查对椎体良恶性压缩骨折的鉴别有一定的价值。
To distinguish malignancy from osteoporotic vertebral collapse.Materials and methods The MRI ap pearance of 30 osteoporotic and 30 malignant vertebral collapse were reviewed. Results The appearance of osteoporosis collapse:the deformation of vertebral can be divided into three types:wede type, concave type and flat type. Retropulsion of a bone fragment is a typical sign. The significant of signal intensity:bandlike low signal beneath vertebral end plate and preservation of normal signal inten- sity of posterior angle of the body. Return Return normal sigal intensity after after injection. The appearance of malignancy collapse: convex posterior cortex,epidura mass,diffuse low signal intensity within the vertebral body on TlWI and in the pedicles,inhomoge- neous high signal intensity after Gado linium injection. Conclusion Gadolinium- enhanced and unenhanced are hages are useful in the differentiation of verlebral collapses.
出处
《医学影像学杂志》
2000年第2期87-89,共3页
Journal of Medical Imaging
关键词
椎体
压缩性
骨质疏松
磁共振成像
Vertebral Collapse Osteoporosis Magnetic resonance imaging
