Lear J L, Pratt J P, Roberts D R, Johnson T, Feyerabend A
Department of Radiology, University of Colorado Health Sciences Center, Denver 80262.
Radiology. 1990 Apr;175(1):241-5. doi: 10.1148/radiology.175.1.2315488.
The authors evaluated the potential of a microcomputer for direct acquisition, display, and processing of gamma camera images. Boards for analog-to-digital conversion and image zooming were designed, constructed, and interfaced to the Macintosh II (Apple Computer, Cupertino, Calif). Software was written for processing of single, gated, and time series images. The system was connected to gamma cameras, and its performance was compared with that of dedicated nuclear medicine computers. Data could be acquired from gamma cameras at rates exceeding 200,000 counts per second, with spatial resolution exceeding intrinsic camera resolution. Clinical analysis could be rapidly performed. This system performed better than most dedicated nuclear medicine computers with respect to speed of data acquisition and spatial resolution of images while maintaining full compatibility with the standard image display, hard-copy, and networking formats. It could replace such dedicated systems in the near future as software is refined.
作者评估了微型计算机直接采集、显示和处理γ相机图像的潜力。设计、构建了模数转换和图像缩放板，并将其与Macintosh II（苹果电脑公司，加利福尼亚州库比蒂诺）连接。编写了用于处理单帧、门控和时间序列图像的软件。该系统与γ相机相连，并将其性能与专用核医学计算机的性能进行了比较。数据可以以每秒超过200,000计数的速率从γ相机获取，空间分辨率超过相机固有分辨率。可以快速进行临床分析。该系统在数据采集速度和图像空间分辨率方面比大多数专用核医学计算机表现更好，同时保持与标准图像显示、硬拷贝和网络格式的完全兼容性。随着软件的完善，它在不久的将来可以取代此类专用系统。
