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脂肪栓塞综合征及其影像学表现 被引量:2

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摘要 脂肪栓塞(fatembolism,FE)是由于循环血流中出现的脂滴阻塞于小血管所致的栓塞,常见于长骨骨折、严重脂肪组织挫伤或脂肪肝挤压伤时,脂肪细胞破裂,游离出的脂滴经破裂的小静脉进入血流而引起脂肪栓塞,脂肪栓塞的后果取决于脂滴的大小和多少以及全身受累的程度。脂肪栓塞综合征(fatembolismsyndrome,FES)是血循环内的脂肪栓塞导致的以神经系统异常、呼吸衰竭及斑点状皮疹为主要表现的综合征,最常见的栓塞部位有肺、脑及皮肤。脂肪栓塞临床症状和检查无特异性,确诊率低、死亡率高。早期诊断脂肪栓塞可降低死亡率,减少额外费用。CT及MRI检查可以早期发现肺部及脑部病变,尤其是MRI已成为评估脑脂肪栓塞(cerebralfatembolism,CFE)最敏感的检查技术。笔者现就脂肪栓塞的流行病学、病理生理机制和临床表现进行综述,重点介绍肺及脑脂肪栓塞的影像表现。
出处 《临床放射学杂志》 CSCD 北大核心 2013年第8期1206-1208,共3页 Journal of Clinical Radiology
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参考文献26

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