【摘要】 目的:利用磁共振成像,建立健康成年人骶管硬膜外脂肪的正常值范围,为临床诊断提供参考基础及影像依据。方法:选择164例正常成年人(平均年龄41.4岁)行腰骶椎磁共振(MRI)扫描,分别测量骶椎各水平前、后硬膜外脂肪(AEF、PEF)的厚度,获得均数及标准差,并以性别、年龄及体重指数分组,进行组间比较及相关因素分析。结果:T1WI正中矢状面上S1~S5水平,硬膜外脂肪厚度平均值依次为6.97 mm、4.94 mm、5.53 mm、5.02 mm及3.86 mm,呈显著下降趋势。结论:本研究为临床确诊硬膜外脂肪增多、寻找神经根受压原因及骶管麻醉时入路方式的选择提供了重要的影像学参考标准。更多还原

【Abstract】 Objective:To quantify an objective measurement of the normal epidural fat of sacral canal with magnetic resonance imaging.Methods:We selected a group of 164 healthy volunteers and MRI scan in lumbosacral spine was performed for everyone.We obtained some measurements on MR workstation after exams such as: Antero-posterior diameter of the epidural fat located ventrally and dorsally to the dural sac of S₁ to S₅ level.We obtained mean distances and standard deviation s of all the values and then made a conclusion.Results:The mean thickness of epidural fat from S₁ to S₅ level is 6.97mm,4.94mm,5.53mm,5.02mm,3.86mm and they reflects a significant trend of decrease.Conclusion:MR imaging was the first procedure of choice for the observation of spinal cord and epidural fat.We provided an imaging reference range of normal epidural fat in sacral canal for clinical diagnosis.更多还原