【摘要】 目的重建L4、L5神经前支和腰骶干以及与骨盆的三维图像,使之得以直观、形象和生动地体现。方法福尔马林灌注固定的成年男性尸体标本1具。显露L4、L5神经前支、腰骶干和骶髂关节前方,将钛粉和粘合剂的混合物均匀涂抹在L4、L5神经前支、腰骶干、股神经神经以及闭孔主干表面。神经表面涂抹的混合物固化变干后,在螺旋CT下行二维断层扫描,层厚3 mm,获取159张连续的二维CT断层图像。将获取的二维图像数据在个人电脑上采用3D-DOCTOR软件进行三维重建。结果重建的三维图像,可以直观形象生动的体现神经与骨盆的空间位置关系,并可按各种方向任意旋转演示。结论三维重建图像较好地描述了神经与骨盆的相关关系,同时还可应用于临床教学。更多还原

【Abstract】 Objective To construct a three-dimensional model to demonstrate the relation between the anterior branches of lumbosacral 4,5,lumbosacral trunk,and the pelvis.Methods An formaldehyde-fixed adult cadaver was dissected to expose the anterior branches of the lumbar nerves 4 and 5,lumbosacral trunk and the sacroiliac.The mixture of titanium powder and adhesive was smeared on the surface of the major branches of L4 and L5 nerves,lumbosacral trunk,femoral nerves and obturator nerves.As soon as the mixture solidified,the specimen was scanned by spiral CT at 3 mm intervals to obtain 159 two-dimensional sectional images for three-dimensional model reconstruction on a personal computer using the software 3-D DOCTOR.Results and Conclusion The reconstructed model can well demonstrate the spatial relation between the nerves and the pelvis,and allows rotation in every direction,which at the same time can be conveniently applied for purpose of clinical teaching.更多还原