摘要
用生物塑化技术制作１．２ｍｍ厚的薄层断面标本，用图像工作站为主机，组成三维重建系统，对包含有颅骨、脑干、垂体、血管、神经等多种结构的人体蝶鞍、斜坡区进行了三维重建观测。重建的所有结构均可以单独显示、任意搭配显示或总体显示；所有结构均可在三维空间绕任意轴旋转任意角度，或以不同速度连续旋转。三维显示一幅包含５０个断面的图像，或转动一幅已重建的图像，仅用１．５ｓ。对所有结构在任意方向上的径线和角度均可适时测量。由于采用了先进的断面标本制作技术和高性能的图像工作站，在编程时将极角排序连结算法和重心位置协调算法相结合，较之以往的三维重建研究，原始数据采集量大，采用了准确的图像输入方法，图像显示效果好，重建速度快，并较好地解决了计算机三维重建中准确定位的问题。
The plastination was used to make equidistant serial thin sections with 1.2 mm in thickness. A SGI work station was employed to reconstruct the structures of the sella turcica and clivus regions in three-dimensions.The structures reconstructed included skull,brain stem,pituitary gland,blood vessels and nerves. All structures reconstructed could be displayed alone,in any group or totally and rotated in 3D space or rotated continuously at different speed.The time spent in displaying or rotating one image included 50 sections was 1.5 seconds.Any diameters and angles of the structures reconstructed could be measured conveniently.With the special sectional anatomical technique,powerful imaging work station and new algorithm in program,a better result than the past was acquired in collecting the original data,displaying the image and speed of reconstruction.A satisfied accurate alignment of the structures in the serial macroscopic sections was obtained as well by the employment of the plastination.
出处
《解剖学报》
CAS
CSCD
北大核心
1996年第2期113-118,共6页
Acta Anatomica Sinica
基金
国家自然科学基金
