髋关节一过性骨质松疏症的MRI表现与诊断

MRI Performance and Diagnosis of Transitory Osteoporosis of the Hip Joint

目的对髋关节一过性骨质松疏症(TOH)MR表现进行分析,以提高TOH诊断水平。方法回顾4例髋关节TOH患者临床症状及MRI表现(行常规MR轴面T1WI、T2WI、STIR和冠状面STIR序列),并复习文献。结果 4例均为单侧髋部病变,于T1WI呈低信号、T2WI及STIR呈高信号,病变涉及股骨头、股骨颈部至粗隆间。6个月后复查症状,均缓解、病灶消失。结论 MRI有利于明确TOH诊断、病变部位和范围,随访MRI检查观察有助于髋关节TOH与股骨头缺血性坏死鉴别。

Objective MRI findings of Transient osteoporosis of the hip（TOH） were analyzed in order to improve the TOH diagnose.Methods 4 cases with TOH were analyzed.The clinical symptoms and MR findings were reviewed.MRI manifest includes axial T1WI,T2WI,T2WI/SPIR and coronary T2WI/SPIR.Results 4 cases with single hip involved caput femoris,collum femoris and tuberosity femoris.There were low signal intensity on T1WI and high signal intensity on T2WI and T2WI/SPIR.After 6 months followed up,the symptoms are alleviated,the lesions disappeared.Conclusion It is help to confirm the diagnose of TOH,the lesion region and scope.Follow-up MRI examination observation helps hip TOH and identify avascular necrosis.