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    • 3. 发明申请
    • VOLUME RENDERING APPARATUS AND METHOD
    • 体积渲染装置和方法
    • WO2009066053A3
    • 2009-10-29
    • PCT/GB2008003799
    • 2008-11-12
    • TOSHIBA MEDICAL VISUALIZATIONROBERTS COLINMELLER SEBASTIAN
    • ROBERTS COLINMELLER SEBASTIAN
    • G06T15/08
    • G06T19/00G06T15/08G06T2210/41G06T2219/008
    • Volume rendering of images of four dimensional (4D) heart image data, in particular cardiac CT data by slab multiplanar reformatting (MPR), is improved by providing an automated method and apparatus for determining and locking onto anatomically relevant viewing parameters. In particular the view plane, view axis and view orientation are changed from frame to frame in the movie so they remain fixed to an anatomical feature of interest, thereby providing a stable movie of the heart feature of interest. Provision of a dynamic view plane compensates not only for trans lational motion of the heart feature of interest, but also for its tilting and twisting. Tilting effects are highly significant when viewing heart valves, since the valve plane exhibits varying angles of tilt through the heart phases as a result of the generally tubular arteries and veins exhibiting a bending motion.
    • 通过提供用于确定和锁定到解剖学上相关的观察参数的自动化方法和装置来改进四维(4D)心脏图像数据,特别是通过平板多重重新格式化(MPR)的心脏CT数据的图像的体积绘制。 特别地,视频平面,视图轴和视图方向在电影中从帧到帧改变,使得它们保持固定到感兴趣的解剖特征,从而提供感兴趣的心脏特征的稳定电影。 提供动态视图平面不仅可以补偿感兴趣的心脏特征的跨国运动,还可以补偿其倾斜和扭转。 当观察心脏瓣膜时,倾斜效应是非常重要的,因为由于大体管状的动脉和静脉呈现弯曲运动,瓣膜平面呈现出通过心脏相的不同倾斜角度。