摘要
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。
Objective To determine the imaging appearance of femoral head osteonecrosis in patients recovering from severe acute respiratory syndrome （SARS）. Methods MR images of the femoral head were obtained from 92 patients（ 184 hips） after they had been discharged from hospital for one year. Results Ten femoral heads（5.4 % ）were diagnosed osteonecrosis on the basis of MR images ,including 2 of stage Ⅰ,8 of stage Ⅱ .90% （9/10） osteonecrotic femoral heads had the typical pattern of ＂double- lines＂ sign, and 10% （1/10） had the pattern of dissfuse hone marrow edema in MR images.There were no statistical discrepancy of incidence of osteonecrosis between symptomatic hips and asymptomatic hips. Conclusions MRI is useful in following up of the osteonecrosis. It is important to arrange reasonable serial MRI follow- up for the recovered SARS patients.
出处
《现代临床医学生物工程学杂志》
2006年第2期95-97,共3页
Journal of Modern Clinical Medical Bioengineering
基金
广东省科技计划基金资助项目(编号:200321-E0112)
关键词
严重急性呼吸综合征
骨坏死
磁共振成像
Severe acute respiratory syndrome
Femoral head, avascular necrosis
