暂时性骨质疏松的MRI表现

目的 分析暂时性骨质疏松的MR表现。方法 回顾性复习8例暂时性骨质疏松的MR表现。8例均行常规MR轴面和冠状面T1、T2WI。8例中男5例，女3例，年龄范围12-70岁。3例女性患病时均不在妊娠期。结果 双侧髋部病变7例，左肩部病变1例。于T1WI呈低信号8例；T2WI呈正常信号2例，中-高信号3例，高信号3例。这种骨髓水肿征象涉及髋臼1例、股骨头5例，T2WI示双侧髋关节少量关节渗液。结论 MRI有利于明确暂时性骨质疏松的诊断、病变部位和范围。

MR imaging of transient osteoporosis

Objective To evaluate MR imaging of transient osteoporosis.Methods MR imaging of transient osteoporosis in eight patients was retrospectively reviewed.In all eight patients,routine scanning was performed in axial and coronal planes,including T_1-weighted and T_2-wighted images.Of the eight patients,five were male and three were female,with the age ranging from 12 to 70 years.Neither of the women was pregnant when they visited our hospital.Results The bilateral hips were affected in seven patients,the left shoulder in one.The MR images demonstrated low signal intensity in all eight patients on T_1WI,and normal signal intensity (2 cases),medium-high signal intensity (3 cases),or high signal intensity (3 cases) on T_2WI.The bone marrow edema (BME) pattern involved the acetabulum (one hip),both the femoral head in 5 hips,the femoral neck and the intertrochanteric region through the upper femur in 7 hips,and the upper humerus in one.A small joint effusion was observed in six hips on T_2WI.Conclusion MRI is useful in defining the location and extent of transient osteoporosis.