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MRI Features of Osteonecrosis of the Femoral Head in Recovered SARS Patients: Follow- up with MR Imaging

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Author:
No author available
Journal Title:
JOURNAL OF MODERN CLINICAL MEDICAL BIOENGINEERING
Issue:
2
DOI:
10.3760/cma.j.issn.1008-634X.2006.02.002
Key Word:
严重急性呼吸综合征;骨坏死;磁共振成像

Abstract: 目的分析严重急性呼吸综合征(SARS)康复者发生股骨头缺血性坏死的MRI表现.方法对92例SARS康复者的184个股骨头(随访1年以上)以MRI对骨头缺血性坏死进行普查.结果184个股骨头中,10个(5.4%)发生了缺血性骨坏死,其中4例为双侧股骨头坏死,2例为单侧股骨头坏死;在MRI上9个(90.0%)股骨头缺血性坏死为典型的双线征,而仅有1个(10%)表现为骨髓水肿(边缘模糊的髓腔内T1WI低信号,T2WI及STIR高信号的骨髓水肿).全部股骨头坏死均为早期改变,其中Ⅰ期2个,Ⅱ期8个;有髋关节症状组和无髋关节症状组对照发现,两组股骨头缺血性坏死率无统计学差异.结论MRI是SARS康复患者股骨头坏死随访筛选检查的一种有效方法,不管有无髋关节症状,对SARS康复患者进行合理的MRI随访是非常必要的.

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