人眼直肌滑车的计算机三维重建  

Computerized three-dimensional reconstruction of the human rectus EOM pulley

作　　者：韩晓梅[1] 赵堪兴[1] 钱学翰[2] 

机构地区：[1]天津医科大学,300070 [2]天津市眼科医院

出　　处：《中华眼科杂志》2007年第11期977-981,共5页Chinese Journal of Ophthalmology

基　　金：国家自然科学基金资助项目（30371520）

摘　　要：目的建立数字化可视人眼直肌滑车的三维立体模型。方法经Masson染色的全眼眶冠状位连续组织切片图像用数码相机摄像后逐一输入计算机内，经PhotoShop7．0软件除噪处理，应用3D—Doctor软件通过对图像的定位、分割进行直肌滑车系统与眼球、4条直肌及眼眶壁的三维立体模型的重建。同时应用3D—Doctor软件的测量工具对直肌滑车及相关组织结构进行测量和分析。结果人眼直肌滑车三维立体模型直观的展示了直肌滑车系统与眼球、直肌及眼眶壁的三维立体关系。该三维立体模型可绕任意轴旋转，方便多角度观察。可对重建的三维结构选择性演示，以利于排除干扰，锁定目标观察。测量结果为各直肌滑车的长度为4．6～5．8mm，始端至角巩膜缘的距离为13．8～18．0mm，其中以内直肌滑车最宽厚，内直肌滑车的厚度与相对应的肌肉厚度比值最大可达1．11。结论直肌滑车三维立体模型为临床医师了解人眼直肌滑车的结构提供了直观图像；为直肌滑车的影像学研究提供了三维解剖学依据。对直肌滑车及相关组织结构进行测量的数据将有助于建立人眼直肌滑车三维可视化数据库。（中华眼科杂志，2007，43：977-981）Objective To establish 3-D visible human model of the rectus EOM Pulley. Methods The pictures of Masson stained adjacent coronal sections of a whole orbit were imaged by digital camera, which were entered into computer continuously after removing spottiness through PhotoShop 7. 0 software. 3D-Doctor software was used to register and split the image. Finally three-dimensional computerized reconstructions of the rectus EOM pulley and eye ball were achieved. At the same time pulley system structure was analyzed using the 3D-Doctor software. Results Three-dimensional model of the rectus EOM pulley displayed directly the three-dimensional relationship of pulley and the eye ball, extraocular muscles and orbit. This three-dimensional model could be rotated randomly, providing convenience for multi-angle observation. The demonstration of the three-dimensional model selectively provides a approach to get rid of disturbance and lock the aim for observation. The length of pulley was about 4. 6 to 5.8 mm. The origin of the four rectus pulleys was 13.8 to 18.0 mm from the corneoscleral limbus. Media rectus pulley was thickest among four rectus pulley. The ratio between media rectus pulley thickness and corresponding media rectus thickness could reach 1.11. Conclusions Three-dimensional model of the rectus EOM pulley provided direct picture for clinic doctors to understand the structure of pulley, which also provided three-dimensional anatomic basis for iconography research of the rectus EOM pulley. The data of pulley could be helpful to establish Chinese rectus EOM pulleys data bank. （Chin J Opbtbalmol, 2007,43：977-981 ）

关 键 词：动眼肌 成像 三维 模型 解剖学 

分 类 号：R686[医药卫生—骨科学]