Lomax A J, Norton M Y, Ross P G, Undrill P E
Department of Bio-Medical Physics and Bio-Engineering, University of Aberdeen, Foresterhill, UK.
Phys Med Biol. 1993 Apr;38(4):491-501. doi: 10.1088/0031-9155/38/4/001.
In Aberdeen, a single-section transverse emission scanner has been adapted to trigger off patient ECG signals, allowing for the acquisition of gated blood pool tomograms at a number of slice levels through the patient's heart. This paper describes a system for the routine generation and display of surface rendered images derived from this data using a transputer based hardware system. Surface rendering algorithms have been implemented to provide an indication of the distribution of the cardiac blood pool in three dimensions, whilst the additional use of colour and/or cine sequences provide a succinct method of representing the extra information provided by gated acquisition. The transputer provides sufficient computing power to produce rendered views at a rate of about 1 frame per second, thus putting view selection fully under operator control. The success of the system described is reflected in its routine use in a busy clinical department.
在阿伯丁，一台单截面横向发射扫描仪已被改装用于触发患者的心电图信号，从而能够在多个层面获取通过患者心脏的门控血池断层图像。本文描述了一种使用基于晶片机的硬件系统，从这些数据中常规生成和显示表面渲染图像的系统。已经实现了表面渲染算法，以提供心脏血池三维分布的指示，同时额外使用颜色和/或电影序列提供了一种简洁的方法来表示门控采集所提供的额外信息。晶片机提供了足够的计算能力，以每秒约1帧的速度生成渲染视图，从而使视图选择完全由操作员控制。所述系统的成功体现在其在繁忙临床科室的常规使用中。
