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急性或亚急性骨质疏松性椎体骨折椎体内真空裂隙的MRI表现 被引量:4

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摘要 目的:探讨急性或亚急性骨质疏松性椎体骨折中椎体内真空裂隙的MRI表现.方法:回顾性分析44例确诊的急性或亚急性骨质疏松性椎体骨折且存在椎体内真空裂隙患者的多层螺旋CT和MRI资料.男16例,女28例.年龄54~90岁,中位数72.5岁.多层螺旋CT与MRI检查的时间间隔0~14 d,中位数4.5 d.骨折椎体按照压缩程度分为轻度压缩、中度压缩和重度压缩;在多层螺旋CT上,根据气体的形态和大小将椎体内真空裂隙分为线性、局限性和弥漫性;在MRI上,椎体内真空裂隙分为未见气体和液体性、气体性、液体性、气体液体混合性.分析多层螺旋CT表现与MRI表现的关联性,以及多层螺旋CT表现与椎体塌陷程度的关联性.结果:①影像学检查结果.本组44例急性或亚急性椎体骨折共涉及57椎,35例为单发,9例为多发.44椎内可见真空裂隙,其中T11椎体3椎、T12椎体18椎、L1椎体18椎、L2椎体3椎、L3椎体1椎、L4椎体1椎.②影像学分型结果.按照椎体压缩程度,可见椎体内真空裂隙的椎体轻度压缩10椎、中度压缩13椎、重度压缩21椎;按照多层螺旋CT表现分型,线性17椎、局限性17椎、弥漫性10椎;按照MRI表现分型,未见气体和液体性5椎、气体性23椎、液体性11椎、气体液体混合性5椎.急性或亚急性椎体骨折的压缩程度与椎体内真空裂隙的多层螺旋CT表现无关联(P=0.661);椎体内真空裂隙的多层螺旋CT表现和MRI表现有关联(P=0.000),椎体内真空裂隙在MRI上主要表现为气体和(或)液体积聚.结论:在急性或亚急性骨质疏松性椎体骨折中,椎体内真空裂隙在MRI上主要表现为气体和(或)液体积聚.
机构地区 北京积水潭医院
出处 《中医正骨》 2013年第12期45-48,共4页 The Journal of Traditional Chinese Orthopedics and Traumatology
基金 北京市卫生系统高层次卫生技术人才培养项目(2009-2-03)
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